A diagram of the triangulation for the survey of the coast of the Unit...
Shows triangulation lines connecting base points in southwestern Connecticut, western Long Island, and New York City vicinity. Rubber-stamped at foot of title: Copyright secured according to law. Annotated/sign... More
Nouvelle carte qui comprend les principaux triangles qui servent de fo...
Public domain scan of an old vintage map, free to use, no copyright restrictions - Picryl description.
![[Grade school, Washington, D.C. - children drawing and cutting rectangles, triangles, etc.]](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE4OTkvMDEvMDEvZ3JhZGUtc2Nob29sLXdhc2hpbmd0b24tZGMtY2hpbGRyZW4tZHJhd2luZy1hbmQtY3V0dGluZy1yZWN0YW5nbGVzLXRyaWFuZ2xlcy02NDAuanBn/40/29/webp "[Grade school, Washington, D.C. - children drawing and cutting rectangles, triangles, etc.]")
[Grade school, Washington, D.C. - children drawing and cutting rectang...
Title and other information transcribed from caption card. Frances Benjamin Johnston Collection. In album: "4th Division." Caption card tracings: Geometry; Schools; Children; Geogr; Art.
Triangles - A close up of a sticker with a triangle on it
Public domain scan of American poster, United States, free to use, no copyright restrictions image - Picryl description
Chuck Wagon Wheel and Triangle. Paradise Valley, Nevada Folklife Colle...
Public domain photograph - historical image of Nevada, United States, free to use, no copyright restrictions image - Picryl description The Paradise Valley Folklife Project was a cultural documentation project... More
Network of light : Triangles
Public domain scan of American poster, United States, free to use, no copyright restrictions image - Picryl description
Triangle. Paradise Valley, Nevada Folklife Collection
For calling men in to eat, called "dinner bell," from Joe Boggio's basement museum The Paradise Valley Folklife Project was a cultural documentation project undertaken by the American Folklife Center at the Li... More