Telemêtre by Errard de Bar-le-Duc, Geometric Square with Quadrant. Original caption: From: Surveying Instruments, Their History and Classroom Use, by Edmund Kiely, , Bureau of Publications, Teachers College, Columbia University, New York 1947.
Size: 6978px × 5126px
Photo credit: © NB/PR / Alamy / Afripics
License: Licensed
Model Released: No
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