Vintage Weems Aircraft Plotter Mark II 1952 Navigation Tool with Case

Vintage Weems Aircraft Plotter Mark II (1952) Authentic military-issued navigation plotter, manufactured by G. Felsenthal & Sons, Chicago. Dated October 1952. Features: - Clear plastic with protractor and rulers - Scales: 1:500,000 and 1:1,000,000 - Includes original envelope with contract details - Engraved “Weems Aircraft Plotter – Mark II – Pat. No. 1,985,907” - Each measures approx: 13 1/4" x 37/8" Collector Note: Perfect for aviation history collectors, military memorabilia fans, or vintage navigation tool enthusiasts. Rare to find with the original envelope.