Léon Cogniet, Scenes of July 1830 (Les Trois Glorieuses)
Photogrammetry key chart for survey flyovers of the Mississippi Delta
Double exposure portrait (Dan Mountford)
Hydra (Albertus Seba)
World Map by Pietro Vescontes, 1321
Surveyors’ encampment
Light keeper at Coast and Geodetic Survey camp, Alaska c. 1923
Heliograph, c. 1911
Rembrandt, The Three Trees
Miners during the Klondike gold rush
Oroboros










































