Testing strength of glass panels. Washington, D.C., June 21. With glas...
Public domain historic photograph of Washington DC, free to use, no copyright restrictions image - Picryl description
New machine to test brake linings designed by Bureau of Standards. Was...
Public domain photograph of people in office, interior, the 1910s-1920s America, free to use, no copyright restrictions image - Picryl description
New method of making pottery. Washington, D.C., June 17. Receiving end...
Picryl description: Public domain photo of 3d object, pottery, ceramics, free to use, no copyright restrictions image.
Sees that Uncle Sam gets value in purchases. Washington, D.C., Sept. 2...
A black and white photo of a woman looking through a microscope. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description
How much wear will your carpet stand? Washington, D.C., March 19. A ma...
Public domain photograph of people in office, interior, the 1910s-1920s America, free to use, no copyright restrictions image - Picryl description
Government scientist cools water to -6ʺ without freezing it. Washingto...
Public domain historical photo, free to use, no copyright restrictions image - Picryl description
Precise measurements. Washington, D.C. June 17. W.H. Goss, of the Nati...
Public domain photograph, 1910s-1920s portrait, American, free to use, no copyright restrictions image - Picryl description
And now a beer meter. Washington, D.C., May 1. To aid Uncle Same in co...
Public domain photograph of people in office, interior, the 1910s-1920s America, free to use, no copyright restrictions image - Picryl description
Bureau of Standards puts ruge insulator through pressure tests. Washin...
Public domain photograph of New York building, free to use, no copyright restrictions image - Picryl description
Interesting job with Uncle Sam. Washington, D.C., Oct. 13. One volt af...
A black and white photo of a woman in a lab. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description
Government discovers method to preserve movie film indefinitely. Washi...
Public domain historical photo, free to use, no copyright restrictions image - Picryl description
Laying of cornerstone of new Physical Laboratory, Bureau of Standards,...
Public domain photo of a monument, historic place, free to use, no copyright restrictions image - Picryl description
Checks railroad signal glasses for government. Washington, D.C., Sept....
A woman sitting at a table working on a machine. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description
Bureau of Standards speeds up photomicrography with new apparatus. Was...
Picryl description: Public domain image of a picnic in the park, outdoor activity, leisure time, free to use, no copyright restrictions.
U.S. experts test weather device. Washington, D.C., Sept. 13. Scientis...
Public domain historical photo, free to use, no copyright restrictions image - Picryl description
"You pay your money and make your choice" Washington, D.C., May 31. A ...
A black and white photo of a man in a suit. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description
Test electric light bulbs for Uncle Sam. Washington, D.C., March 21. P...
Public domain photograph of people in office, interior, the 1910s-1920s America, free to use, no copyright restrictions image - Picryl description
U.S. testing liveliness of baseballs. Washington, D.C., Feb. 21. Exper...
Public domain photograph of people in office, interior, the 1910s-1920s America, free to use, no copyright restrictions image - Picryl description
New quick drying defense huts demonstrated to government officials. Wa...
A group of men standing next to each other. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description
[Paper manufacturing machine of the Pusey & Jones Company, at the Bure...
National Photo Company Collection. Public domain photograph of manufacturing workers, factory building, assembly line, free to use, no copyright restrictions image - Picryl description
New radio meteorograph developed for the U.S. Navy. Washington, D.C., ...
Public domain photograph of people in office, interior, the 1910s-1920s America, free to use, no copyright restrictions image - Picryl description
U.S. conducts tests to improve acidity standards. Washington, D.C. Jun...
Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description
Bureau of Standards, National Photo Company, Washington DC
Exterior view of building in Washington, D.C. No. 1496. National Photo Company Collection (Library of Congress)
Measuring relative humidity by radio. Washington, D.C. June 9. The hai...
Public domain photograph of people in office, interior, the 1910s-1920s America, free to use, no copyright restrictions image - Picryl description
How much wear will your carpet stand? Washington, D.C., March 19. A ma...
Public domain historical photo, free to use, no copyright restrictions image - Picryl description
Experts at Bureau of Standards study effect of corrosive soils on spec...
Public domain historical photo, free to use, no copyright restrictions image - Picryl description