Odometer in canister with leather thong
Keuffel & Esser Co., (active 1867 - 1987)
brass
United States transportation

Stadia Slide rule N4100, case and box, used on the BOWDOIN,
Keuffel & Esser Co., (active 1867 - 1987)
Mahogany, celluloid, glass, metal
United States scientific equipment

Pocket compass on leather thong
Keuffel & Esser Co., (active 1867 - 1987)
metal
United States scientific equipment

Theodolite model 5080 in case with accessories
Keuffel & Esser Co., (active 1867 - 1987)
brass on wood
United States scientific equipment