Hydraulic Engineering, Anonymous, 1875 - 1900 photograph Photo on cardboard, of a hydraulic engineering tool (excavation tool). Inscription: 'Ralph R. Osgood, Patentee & Builder Troy Patenden (4th May 1875, 13 July, Oct. 23, 1877). paper. cardboard
Size: 5288px × 4084px
Photo credit: © piemags/rmn / Alamy / Afripics
License: Licensed
Model Released: No
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