Vintage beam compass engineering dreafting tool

Vintage Dietzgen Beam Compass, Model 970-W, Germany antique Incomplete

(Lot 23)- Vintage Keuffel & Esser Co. Natural Sines Compass.

Keuffel & Esser K&E No. 4236 Planetary Drafting Compass Set w/ Case

Vintage Beam Compass - Trammel Woodworking Engineering Wood Case

Fullerton 2520-02 Large Beam Compass Arm Drafting Tool W. Germany

Bruning Beam Compass Antique w/ Original Box Great Drafting History!!

Alvin 961A Beam Compass Set West Germany Drafting Tool Kit Blue Case Vintage