Engineering

Vintage Collectible Sofia Piezo Crystal Microphone USSR Soviet Mic Full Metal

$155.00

Antique Passenger Elevator Hall Call Frame C1910

$559.00

Vintage Kern Aarau Switzerland Drafting Instrument Set Complete w/ Case

$149.99

Antique Brass & Cast Iron Fleck Bros. Co. Philadelphia Altitude Pressure Gauge

$49.95

Antique Eagle Pencil Co Model 569 Compass Divider 1894 Patent Floral Engraved

$47.39

1909 COLORADO Bridge Plans - LARGE - STATE ENGINEER - Denver - ORIGINAL

$50.00

​Antique 1922 W & LE Gurley Surveyors Transit Level #221341 Troy NY Clear Optics

$205.00

General Motor Corp Detroit Diesel Division Ashtray Paperweight Award READ

$155.99

Vintage Price Electric Corp Type 6225-15 Electromagnetic Contactor Relay 115V AC

$139.99

1855 Schuyler, Hartley & Graham Vernier Compass - Big Firearms Dealer Civil War

$1,000.00

Antique 1790's 1820s Shagreen Etui Engineer Drafting Architect Tools Set

$395.00

Antique Solid Brass (Bezel & Frame) General Electric Bearing 4 1/2 inch Pat 1893

$59.95

Vintage Cast Iron York Ice Machinery Corp. Ammonia Pressure *Foxboro* Gauge

$59.95

Antique Brass Duplex Pressure Gauge Pat. Sept. 18, 1906 *The Permutit Company*

$119.95

Antique Crosby Steam Pressure Gauge 8” Industrial Boiler Gauge Boston C1888

$300.00

1895 Antique Swiss G. Coradi Polar Planimeter Drafting Instrument w/ Fitted Case

$280.00

Antique Buff & Buff Surveyor Transit Level W/ Box And Lenses

$749.99

1889 Milton Bradley Springfield Industrial Drawing Kit Drafter Antique

$35.00

1825 B.K. Hagger Vernier Compass - inscribed Chesapeak & Ohio Canal Co.

$1,650.00