$40

Vintage Planimeter - Eugene Dietzgen

$8000

CA. 1890 NEW YORK SAFETY CO. 12 HP VERTICAL ELECTRIC LIGHTING STEAM ENGINE

$15000

1915 CLARK TWO-SIDED BELT DRIVEN MECHANICAL WOOD SPLITTER W HERCULES GAS ENGINE

$36.46

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

$22.49

1944 Hydraulic Tables -Federal Works Project City of New York-Corps of Engineers

$142.63

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

$15995

1888 Antique Bone Naval Cartographer Drafting Drawing Set w/ Case R.W. & F. CO

$5000

CA 1900 COLOSSAL ELECTRO-MECHANICAL BANK VAULT ALARM , Safe Alarm SYSTEM

$24.5

RARE 1838 Congressional Record Report, Tippett SAFETY STEAM ENGINE, Baltimore

$400

Scale

$833.75

c. 1910 Machinist Tool Chest

$1800

CA 1880s ELECTRO-MECHANICAL DOUBLE DRUM ASTRONOMICAL RECORDING CHRONOGRAPH