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1870 US-made precision instrument in box; papers, accessories.This�Heller & Brightly theodolite transit scope is an extraordinary example of mid...
Heavy brass transit in original wood, leather box; table stand.Made sometime prior to 1940 when A.S. Aloe Company (St. Louis, MO) shifted to medic...
Heavy brass transit in original wood, leather box; table stand.Made sometime prior to 1940 when A.S. Aloe Company (St. Louis, MO) shifted to medic...
Bronze and steel scope with bubble level, numerous adjustments.A classic piece of scientific surveying equipment, this Buff & Buff Co. transit sco...
Petite Massachusetts-made survey scope with cap, base, plumb.Made by one of America's longest running and most respected manufacturers of precisio...
Solid brass construction 2-axis transit with levels, table stand.Great display model of a traditional surveyor's transit scope- a swivel base of s...
In original leather carry cases; brass, black lacquer; working.This set of US-made, Dietzgen surveying tools would have been at home in the pocket...
2 spirit level accessories, adjustable tribrach; 2 scopes; box.Eclectic collection of vintage brass, copper, and chromed instruments and accessori...
Mounted on an adjustable wooden tripod with chromatic elements. Issued: Early 20th c. Dimensions: 53"H (min) x 19"L X 14"D, mounted Country of Ori...
Mounted on an adjustable wooden tripod with chromatic elements.Binoculars with brass elements. Optical unit measures roughly 26.5"L X 12"W. Issue...
Mounted on an adjustable wooden tripod with chromatic elements. Issued: Early 20th c. Dimensions: 73"H x 28"W Country of Origin: Germany Conditio...
Mounted on an adjustable wooden tripod with chromatic elements. Issued: Early 20th c. Dimensions: 55"H x 14.5"W Country of Origin: Germany Condit...
Mounted on an adjustable base. Issued: Early 20th c. Dimensions: 21.5"H x 16.5"W Country of Origin: Germany Condition: Good; working ...[more]
Trench periscope binoculars and horsehair backpack, tripod and leather case.A complete set of trench donkey ears binoculars, manufactured by Filot...
Mounted on an adjustable wooden tripod with chromatic elements.Optical unit is roughly 24"L X 9"W Issued: 20th c. Dimensions: 52"H (min) X 24"L X...
Engineered with a profusion of moving dials and switches, and various removable boards.An aviation control panel with indicators and control switc...
Black with chrome switches and metal and plastic dials, previously functioning light displays.An integrated metal and plastic aviation control pan...
Small can with top chained to resevoir; stamped and soldered.Petite design ideal for the 19th�century engineer or mechanic on the go- a splendid...
Rare instrument to study sound, two original brass coaxial sirens.A rare late 19th century instrument for the study of sound, with its two origina...
5 metal terminals, oak base. Original lineman card. Issued: c. 1920 Dimensions: 6"L Manufacturer: Central Scientific Co. Country of Origin: United...
Early 20th century static electricity generator in wooden cabinet.Original case key and two electrodes with moveable balls. Original Leyden Jars, ...
Used with intercom. Issued: c. 1900 Dimensions: 5.25"L Country of Origin: United States Condition: Untested, otherwise overall good condition .....
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