Du Pont smokeless shotgun powder - the standard of the world
Print showing a brood of quail nesting in tall grass. Copyright 1913 by E.I. Dupont de Nemours Powder Company, Wilmington, Del.
![[The Tahtalı police station at the Imperial Gunpowder Factory] / the photograph studio of the Imperial School of Engineering.](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE4ODAvMDEvMDEvdGhlLXRhaHRhbGktcG9saWNlLXN0YXRpb24tYXQtdGhlLWltcGVyaWFsLWd1bnBvd2Rlci1mYWN0b3J5LXRoZS1waG90b2dyYXBoLTY0MC5qcGc%3D/40/30/webp "[The Tahtalı police station at the Imperial Gunpowder Factory] / the photograph studio of the Imperial School of Engineering.")
[The Tahtalı police station at the Imperial Gunpowder Factory] / the p...
Title translated from album caption. Captioned in Ottoman Turkish and French. No. 17. Photograph taken by the Imperial School of Engineering Photography Unit. (Source: Imperial self-portrait: The Ottoman Empir... More
![[The cogwheels in the mixing department at the Imperial Gunpowder Factory] / the photograph studio of the Imperial School of Engineering.](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE4ODAvMDEvMDEvdGhlLWNvZ3doZWVscy1pbi10aGUtbWl4aW5nLWRlcGFydG1lbnQtYXQtdGhlLWltcGVyaWFsLWd1bnBvd2Rlci1mYWN0b3J5LXRoZS02NDAuanBn/40/31/webp "[The cogwheels in the mixing department at the Imperial Gunpowder Factory] / the photograph studio of the Imperial School of Engineering.")
[The cogwheels in the mixing department at the Imperial Gunpowder Fact...
Title translated from album caption. Captioned in Ottoman Turkish and French. No. 20. Photograph taken by the Imperial School of Engineering Photography Unit. (Source: Imperial self-portrait: The Ottoman Empir... More
Making gunpowder at Beit Jibrin. Obtaining liquid for gunpowder
Public domain photograph of 1920s Israel, free to use, no copyright restrictions image - Picryl description
Making gunpowder at Beit Jibrin. Mixing the gunpowder
Public domain photograph of 1920s Israel, free to use, no copyright restrictions image - Picryl description
![[The mixing factory at the Imperial Gunpowder Factory] / the photograph studio of the Imperial School of Engineering.](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE4ODAvMDEvMDEvdGhlLW1peGluZy1mYWN0b3J5LWF0LXRoZS1pbXBlcmlhbC1ndW5wb3dkZXItZmFjdG9yeS10aGUtcGhvdG9ncmFwaC1zdHVkaW8tNjQwLmpwZw%3D%3D/40/28/webp "[The mixing factory at the Imperial Gunpowder Factory] / the photograph studio of the Imperial School of Engineering.")
[The mixing factory at the Imperial Gunpowder Factory] / the photograp...
Title translated from album caption. Captioned in Ottoman Turkish and French. No. 7. Photograph taken by the Imperial School of Engineering Photography Unit. (Source: Imperial self-portrait: The Ottoman Empire... More
![[The central police station at the Imperial Gunpowder Factory] / the photograph studio of the Imperial School of Engineering.](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE4ODAvMDEvMDEvdGhlLWNlbnRyYWwtcG9saWNlLXN0YXRpb24tYXQtdGhlLWltcGVyaWFsLWd1bnBvd2Rlci1mYWN0b3J5LXRoZS1waG90b2dyYXBoLTY0MC5qcGc%3D/40/31/webp "[The central police station at the Imperial Gunpowder Factory] / the photograph studio of the Imperial School of Engineering.")
[The central police station at the Imperial Gunpowder Factory] / the p...
Title translated from album caption. Captioned in Ottoman Turkish and French. No. 26. Photograph taken by the Imperial School of Engineering Photography Unit. (Source: Imperial self-portrait: The Ottoman Empir... More
![[The new police station at the Imperial Gunpowder Factory] / the photograph studio of the Imperial School of Engineering.](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE4ODAvMDEvMDEvdGhlLW5ldy1wb2xpY2Utc3RhdGlvbi1hdC10aGUtaW1wZXJpYWwtZ3VucG93ZGVyLWZhY3RvcnktdGhlLXBob3RvZ3JhcGgtc3R1ZGlvLTY0MC5qcGc%3D/40/30/webp "[The new police station at the Imperial Gunpowder Factory] / the photograph studio of the Imperial School of Engineering.")
[The new police station at the Imperial Gunpowder Factory] / the photo...
Title translated from album caption. Captioned in Ottoman Turkish and French. No. 5. Photograph taken by the Imperial School of Engineering Photography Unit. (Source: Imperial self-portrait: The Ottoman Empire... More
![[The powder press with a roller at the Imperial Gunpowder Factory] / the photograph studio of the Imperial School of Engineering.](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE4ODAvMDEvMDEvdGhlLXBvd2Rlci1wcmVzcy13aXRoLWEtcm9sbGVyLWF0LXRoZS1pbXBlcmlhbC1ndW5wb3dkZXItZmFjdG9yeS10aGUtcGhvdG9ncmFwaC02NDAuanBn/40/31/webp "[The powder press with a roller at the Imperial Gunpowder Factory] / the photograph studio of the Imperial School of Engineering.")
[The powder press with a roller at the Imperial Gunpowder Factory] / t...
Title translated from album caption. Captioned in Ottoman Turkish and French. No. 28. Photograph taken by the Imperial School of Engineering Photography Unit. (Source: Imperial self-portrait: The Ottoman Empir... More
Making gunpowder at Beit Jibrin. Boiling the liquid
Public domain photograph of 1920s Israel, free to use, no copyright restrictions image - Picryl description
Jerusalem Grist Mill, Jerusalem Road vicinity, Little Gunpowder River,...
Survey number: HABS MD-523 Building/structure dates: ca. 1772 Initial Construction
![[The police station of the Mauser cartridge magazine at the Imperial Gunpowder Factory] / the photograph studio of the Imperial School of Engineering.](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE4ODAvMDEvMDEvdGhlLXBvbGljZS1zdGF0aW9uLW9mLXRoZS1tYXVzZXItY2FydHJpZGdlLW1hZ2F6aW5lLWF0LXRoZS1pbXBlcmlhbC1ndW5wb3dkZXItNjQwLmpwZw%3D%3D/40/30/webp "[The police station of the Mauser cartridge magazine at the Imperial Gunpowder Factory] / the photograph studio of the Imperial School of Engineering.")
[The police station of the Mauser cartridge magazine at the Imperial G...
Picryl description: Public domain vintage artistic photograph, free to use, no copyright restrictions image.
![[The Mauser cartridge factory at the Imperial Gunpowder Factory] / the photograph studio of the Imperial School of Engineering.](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE4ODAvMDEvMDEvdGhlLW1hdXNlci1jYXJ0cmlkZ2UtZmFjdG9yeS1hdC10aGUtaW1wZXJpYWwtZ3VucG93ZGVyLWZhY3RvcnktdGhlLXBob3RvZ3JhcGgtNjQwLmpwZw%3D%3D/40/29/webp "[The Mauser cartridge factory at the Imperial Gunpowder Factory] / the photograph studio of the Imperial School of Engineering.")
[The Mauser cartridge factory at the Imperial Gunpowder Factory] / the...
Title translated from album caption. Captioned in Ottoman Turkish and French. No. 18. Photograph taken by the Imperial School of Engineering Photography Unit. (Source: Imperial self-portrait: The Ottoman Empir... More
![[The powder roller at the Imperial Gunpowder Factory] / the photograph studio of the Imperial School of Engineering.](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE4ODAvMDEvMDEvdGhlLXBvd2Rlci1yb2xsZXItYXQtdGhlLWltcGVyaWFsLWd1bnBvd2Rlci1mYWN0b3J5LXRoZS1waG90b2dyYXBoLXN0dWRpby1vZi02NDAuanBn/40/28/webp "[The powder roller at the Imperial Gunpowder Factory] / the photograph studio of the Imperial School of Engineering.")
[The powder roller at the Imperial Gunpowder Factory] / the photograph...
Rolling mills. Title translated from album caption. Captioned in Ottoman Turkish and French. No. 12. Photograph taken by the Imperial School of Engineering Photography Unit. (Source: Imperial self-portrait: Th... More
![[The machinery for making prisms at the Imperial Gunpowder Factory] / the photograph studio of the Imperial School of Engineering.](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE4ODAvMDEvMDEvdGhlLW1hY2hpbmVyeS1mb3ItbWFraW5nLXByaXNtcy1hdC10aGUtaW1wZXJpYWwtZ3VucG93ZGVyLWZhY3RvcnktdGhlLXBob3RvZ3JhcGgtMS02NDAuanBn/40/32/webp "[The machinery for making prisms at the Imperial Gunpowder Factory] / the photograph studio of the Imperial School of Engineering.")
[The machinery for making prisms at the Imperial Gunpowder Factory] / ...
Title translated from album caption. Captioned in Ottoman Turkish and French. No. 48. Photograph taken by the Imperial School of Engineering Photography Unit. (Source: Imperial self-portrait: The Ottoman Empir... More
![[The mixing and beating department in the Imperial Gunpowder Factory] / the photograph studio of the Imperial School of Engineering.](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE4ODAvMDEvMDEvdGhlLW1peGluZy1hbmQtYmVhdGluZy1kZXBhcnRtZW50LWluLXRoZS1pbXBlcmlhbC1ndW5wb3dkZXItZmFjdG9yeS10aGUtcGhvdG9ncmFwaC02NDAuanBn/40/30/webp "[The mixing and beating department in the Imperial Gunpowder Factory] / the photograph studio of the Imperial School of Engineering.")
[The mixing and beating department in the Imperial Gunpowder Factory] ...
Title translated from album caption. Captioned in Ottoman Turkish and French. No. 2. Photograph taken by the Imperial School of Engineering Photography Unit. (Source: Imperial self-portrait: The Ottoman Empire... More
![[Manual roller in the Imperial Gunpowder Factory] / the photograph studio of the Imperial School of Engineering.](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE4ODAvMDEvMDEvbWFudWFsLXJvbGxlci1pbi10aGUtaW1wZXJpYWwtZ3VucG93ZGVyLWZhY3RvcnktdGhlLXBob3RvZ3JhcGgtc3R1ZGlvLW9mLXRoZS02NDAuanBn/40/31/webp "[Manual roller in the Imperial Gunpowder Factory] / the photograph studio of the Imperial School of Engineering.")
[Manual roller in the Imperial Gunpowder Factory] / the photograph stu...
Title translated from album caption. Captioned in Ottoman Turkish and French. No. 44. Photograph taken by the Imperial School of Engineering Photography Unit. (Source: Imperial self-portrait: The Ottoman Empir... More
Making gunpowder at Beit Jibrin. Mixing the gunpowder
Title from: Catalogue of photographs & lantern slides ... [1936?]. Caption on negative: Mixing the gunpowder. Date from Matson LOT cards. Gift; Episcopal Home; 1978.
Gunpowder for sale here / Oliver J. Stuart, N.Y.
Broadsheet advertisement for the Laflin Powder Company, Saugerties, New York, manufacturers of gunpowder, with "Offices [at] 29 Water St. cor. of Olive St. St. Louis Mo. and 79 South Water St. Chicago, Ill." sh... More
Gunpowder Bridge, Maryland - Mammoth Plate Photograph
Public domain historical photo, free to use, no copyright restrictions image - Picryl description
![[The roller for the willow coal at the Imperial Gunpowder Factory] / the photograph studio of the Imperial School of Engineering.](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE4ODAvMDEvMDEvdGhlLXJvbGxlci1mb3ItdGhlLXdpbGxvdy1jb2FsLWF0LXRoZS1pbXBlcmlhbC1ndW5wb3dkZXItZmFjdG9yeS10aGUtcGhvdG9ncmFwaC02NDAuanBn/40/31/webp "[The roller for the willow coal at the Imperial Gunpowder Factory] / the photograph studio of the Imperial School of Engineering.")
[The roller for the willow coal at the Imperial Gunpowder Factory] / t...
Title translated from album caption. Captioned in Ottoman Turkish and French. No. 19. Photograph taken by the Imperial School of Engineering Photography Unit. (Source: Imperial self-portrait: The Ottoman Empir... More
Making gunpowder at Beit Jibrin. Cave dwelling of gunpowder makers
Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.
Rumsey House, Gunpowder Falls vic., Harford County, Maryland
Public domain photograph of a historic place in Maryland, no copyright restrictions image - Picryl description
Gunpowder, musical notation - American Civil War sheet music
Music associated with the Union side
Alexander J. Dallas to James Madison, May 23, 1815. With a Return for ...
Transcripts, guides, and tools to help you use this collection may be found at loc.gov James Madison Papers.
Making gunpowder at Beit Jibrin. Evaporating the liquid
Public domain photograph of 1920s Israel, free to use, no copyright restrictions image - Picryl description
Gunpowder, musical notation - American Civil War sheet music
Music associated with the Union side
Gunpowder, musical notation - American Civil War sheet music
Music associated with the Union side
Gunpowder, musical notation - American Civil War sheet music
Music associated with the Union side
In Congress, August 28, 1776 : Resolved, that there be an inspector or...
Signed: By order of Congress, John Hancock, president. Imprint supplied from Evans. Evans 15166 Journals of the Continental Congress, 125 LC copy annotated on verso: Resolve of Congress of August 28th 1776 for ... More
![[The powder press at the Imperial Gunpowder Factory] / the photograph studio of the Imperial School of Engineering.](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE4ODAvMDEvMDEvdGhlLXBvd2Rlci1wcmVzcy1hdC10aGUtaW1wZXJpYWwtZ3VucG93ZGVyLWZhY3RvcnktdGhlLXBob3RvZ3JhcGgtc3R1ZGlvLW9mLTY0MC5qcGc%3D/40/31/webp "[The powder press at the Imperial Gunpowder Factory] / the photograph studio of the Imperial School of Engineering.")
[The powder press at the Imperial Gunpowder Factory] / the photograph ...
Public domain photograph of factory building, free to use, no copyright restrictions image - Picryl description
![[The new magazine at the Imperial Gunpowder Factory] / the photograph studio of the Imperial School of Engineering.](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE4ODAvMDEvMDEvdGhlLW5ldy1tYWdhemluZS1hdC10aGUtaW1wZXJpYWwtZ3VucG93ZGVyLWZhY3RvcnktdGhlLXBob3RvZ3JhcGgtc3R1ZGlvLW9mLTY0MC5qcGc%3D/40/29/webp "[The new magazine at the Imperial Gunpowder Factory] / the photograph studio of the Imperial School of Engineering.")
[The new magazine at the Imperial Gunpowder Factory] / the photograph ...
Title translated from album caption. Captioned in Ottoman Turkish and French. No. 15. Photograph taken by the Imperial School of Engineering Photography Unit. (Source: Imperial self-portrait: The Ottoman Empir... More
City of Boston. All persons within the City of Boston having gunpowder...
Handwritten on verso: 1862. Available also through the Library of Congress web site in two forms: as facsimile page images and as full text in SGML. Printed Ephemera Collection; Portfolio 69, Folder 10.
![[The mortars in the Imperial Gunpowder Factory] / the photograph studio of the Imperial School of Engineering.](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE4ODAvMDEvMDEvdGhlLW1vcnRhcnMtaW4tdGhlLWltcGVyaWFsLWd1bnBvd2Rlci1mYWN0b3J5LXRoZS1waG90b2dyYXBoLXN0dWRpby1vZi10aGUtNjQwLmpwZw%3D%3D/40/32/webp "[The mortars in the Imperial Gunpowder Factory] / the photograph studio of the Imperial School of Engineering.")
[The mortars in the Imperial Gunpowder Factory] / the photograph studi...
Title translated from album caption. Captioned in Ottoman Turkish and French. No. 47. Photograph taken by the Imperial School of Engineering Photography Unit. (Source: Imperial self-portrait: The Ottoman Empir... More
Making gunpowder at Beit Jibrin. Preparing a blast
Public domain photograph of 1920s Israel, free to use, no copyright restrictions image - Picryl description
Gunpowder, musical notation - American Civil War sheet music
Music associated with the Union side
Alexander J. Dallas to James Madison, May 23, 1815. With a Return for ...
Transcripts, guides, and tools to help you use this collection may be found at loc.gov James Madison Papers.
![Cave dwelling of gunpowder makers [Beit Jibrin]](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE4OTgvMDEvMDEvY2F2ZS1kd2VsbGluZy1vZi1ndW5wb3dkZXItbWFrZXJzLWJlaXQtamlicmluLTEwMjQuanBn/40/29/webp "Cave dwelling of gunpowder makers [Beit Jibrin]")
Cave dwelling of gunpowder makers [Beit Jibrin]
Public domain photograph of 1920s Israel, free to use, no copyright restrictions image - Picryl description
Gunpowder, musical notation - American Civil War sheet music
Music associated with the Union side
In Congress, August 28, 1776 : Resolved, that there be an inspector or...
Signed: By order of Congress, John Hancock, president. Imprint supplied from Evans. Evans 15166 Journals of the Continental Congress, 125 LC copy annotated on verso: Resolve of Congress of August 28th 1776 for ... More
![[The machinery for making prisms at the Imperial Gunpowder Factory] / the photograph studio of the Imperial School of Engineering.](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE4ODAvMDEvMDEvdGhlLW1hY2hpbmVyeS1mb3ItbWFraW5nLXByaXNtcy1hdC10aGUtaW1wZXJpYWwtZ3VucG93ZGVyLWZhY3RvcnktdGhlLXBob3RvZ3JhcGgtNjQwLmpwZw%3D%3D/40/32/webp "[The machinery for making prisms at the Imperial Gunpowder Factory] / the photograph studio of the Imperial School of Engineering.")
[The machinery for making prisms at the Imperial Gunpowder Factory] / ...
Title translated from album caption. Captioned in Ottoman Turkish and French. No. 49. Photograph taken by the Imperial School of Engineering Photography Unit. (Source: Imperial self-portrait: The Ottoman Empir... More
![[Untitled, unsigned cuts adorn individual numbers of this magazine. These show an Indian, with an Englishman on one side offering a Bible and some cloth, and a Frenchman on the other side offering gunpowder and a tomahawk. Under are the words "Praevalebit Aequior"]](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE3NTcvMDEvMDEvdW50aXRsZWQtdW5zaWduZWQtY3V0cy1hZG9ybi1pbmRpdmlkdWFsLW51bWJlcnMtb2YtdGhpcy1tYWdhemluZS10aGVzZS1zaG93LTY0MC5qcGc%3D/40/34/webp "[Untitled, unsigned cuts adorn individual numbers of this magazine. These show an Indian, with an Englishman on one side offering a Bible and some cloth, and a Frenchman on the other side offering gunpowder and a tomahawk. Under are the words \"Praevalebit Aequior\"]")
[Untitled, unsigned cuts adorn individual numbers of this magazine. Th...
Illus. in: American Magazine and Monthly Chronicle for the British Colonies, Philadelphia, 1757 Nov., v. 1, cover. This record contains unverified, old data from caption card. Caption card tracings:
![[The bullet sieve at the Imperial Gunpowder Factory] / the photograph studio of the Imperial School of Engineering.](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE4ODAvMDEvMDEvdGhlLWJ1bGxldC1zaWV2ZS1hdC10aGUtaW1wZXJpYWwtZ3VucG93ZGVyLWZhY3RvcnktdGhlLXBob3RvZ3JhcGgtc3R1ZGlvLW9mLTY0MC5qcGc%3D/40/31/webp "[The bullet sieve at the Imperial Gunpowder Factory] / the photograph studio of the Imperial School of Engineering.")
[The bullet sieve at the Imperial Gunpowder Factory] / the photograph ...
Bullet sorting shop. Title translated from album caption. Captioned in Ottoman Turkish and French. No. 22. Photograph taken by the Imperial School of Engineering Photography Unit. (Source: Imperial self-portra... More
![[The factory for polishing pebble powder at the Imperial Gunpowder Factory] / the photograph studio of the Imperial School of Engineering.](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE4ODAvMDEvMDEvdGhlLWZhY3RvcnktZm9yLXBvbGlzaGluZy1wZWJibGUtcG93ZGVyLWF0LXRoZS1pbXBlcmlhbC1ndW5wb3dkZXItZmFjdG9yeS10aGUtNjQwLmpwZw%3D%3D/40/31/webp "[The factory for polishing pebble powder at the Imperial Gunpowder Factory] / the photograph studio of the Imperial School of Engineering.")
[The factory for polishing pebble powder at the Imperial Gunpowder Fac...
Title translated from album caption. Captioned in Ottoman Turkish and French. No. 29. Photograph taken by the Imperial School of Engineering Photography Unit. (Source: Imperial self-portrait: The Ottoman Empir... More
![[The iron gate magazine at the Imperial Gunpowder Factory] / the photograph studio of the Imperial School of Engineering.](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE4ODAvMDEvMDEvdGhlLWlyb24tZ2F0ZS1tYWdhemluZS1hdC10aGUtaW1wZXJpYWwtZ3VucG93ZGVyLWZhY3RvcnktdGhlLXBob3RvZ3JhcGgtc3R1ZGlvLTY0MC5qcGc%3D/40/31/webp "[The iron gate magazine at the Imperial Gunpowder Factory] / the photograph studio of the Imperial School of Engineering.")
[The iron gate magazine at the Imperial Gunpowder Factory] / the photo...
Title translated from album caption. Captioned in Ottoman Turkish and French. No. 23. Photograph taken by the Imperial School of Engineering Photography Unit. (Source: Imperial self-portrait: The Ottoman Empir... More
Making gunpowder at Beit Jibrin. Obtaining liquid for gunpowder
Title from: Catalogue of photographs & lantern slides ... [1936?]. Caption on negative: Obtaining liquid for gunpowder. Date from Matson LOT cards. Gift; Episcopal Home; 1978.
Alexander J. Dallas to James Madison, May 23, 1815. With a Return for ...
Transcripts, guides, and tools to help you use this collection may be found at loc.gov James Madison Papers.
Alexander J. Dallas to James Madison, May 23, 1815. With a Return for ...
Transcripts, guides, and tools to help you use this collection may be found at loc.gov James Madison Papers.
![[The willow magazine at the Imperial Gunpowder Factory] / the photograph studio of the Imperial School of Engineering.](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE4ODAvMDEvMDEvdGhlLXdpbGxvdy1tYWdhemluZS1hdC10aGUtaW1wZXJpYWwtZ3VucG93ZGVyLWZhY3RvcnktdGhlLXBob3RvZ3JhcGgtc3R1ZGlvLTY0MC5qcGc%3D/40/29/webp "[The willow magazine at the Imperial Gunpowder Factory] / the photograph studio of the Imperial School of Engineering.")
[The willow magazine at the Imperial Gunpowder Factory] / the photogra...
Title translated from album caption. Captioned in Ottoman Turkish and French. No. 6. Photograph taken by the Imperial School of Engineering Photography Unit. (Source: Imperial self-portrait: The Ottoman Empire... More
