$58

NEAT VINTAGE BOSTROM SURVEYOR LEVEL PATENT 1902 05 06

$3000

CA 1897 W. WUNDT ELECTRIC PENDULUM MOTOR DRIVEN TACHISTOSCOPE

$1049

*SUPER RARE* General Electric Co. / Thomson-Houston System Ammeter (ca. 1889)

$654.5

Early 20th Century Cast Iron Cutaway Steam Engine Demonstrator

$142.33

Antique Brass Surveyor's POCKET COMPASS Functioning Needle Lock Original Case

$1650

Antique George F Blake Mfg Co Steam Pump Engine Makers Plate 1894 Cambridge Ma

$85

VINTAGE LARGE METAL DRAFTING COMPASS PATENT DATE 1873 Weatherhead Rare

$833.75

c. 1910 Machinist Tool Chest

$1800

CA 1880s ELECTRO-MECHANICAL DOUBLE DRUM ASTRONOMICAL RECORDING CHRONOGRAPH

$49

Antique? Stainless Steel Protractor Mantua Metal Products  USCE w/ case

$40

Vintage Planimeter - Eugene Dietzgen

$36.46

Crescent Lufkin 1066DN 5/8" x 6' Red End® Engineer's Scale - White Wooden Rule