$35

CENCO Central Scientific Co. Laboratory Rheostat 24 Ohms 4.4 Amps Chicago

$26.93

Vintage Inches to Miles or Verstes Centimetres to Kilometres Map Tool

$67.34

Vintage Brass Compass & Clock in Wooden Box Nautical Collectible 49 Bond Street

$19.62

Vintage Double-Sided Opisometer Map Distance Measuring Wheel 1940S

$33.67

GAVANOMETER APW7559 0-100

$87.54

Calculator Casio MQ-10 Computer Quartz 1979 Scientific Instrument Vintage

$16.66

Oregon Scientific PD293 Retro Personal Digital Assistant **Used Tested**

$404.01

Ansonia Pocket Sunwatch & Compass - Antique, Rare, Brass, Made In USA

$181.8

Early 1900s Ateliers Bariquand & Marre (Paris) French Cased Measuring Instrument

$53.87

Vintage Industrial Fittings Door Ceiling Furniture Brass

$82.99

Vintage Carolina Scale 610G 242

$12.66

Unique laboratory apparatus small bulb shape ground end From a Vintage collectio