Vintage Philip Dalton Dead Reckoning Aviation Computer
Type E-6B (Minutes Scale Calibration) For Air Speed Computations by Weems System of Navigation
Pat. No. 2,097,116 complete with Rawhide Case in Excellent Condition.
Gauge for cruising altitudes and magnetic courses. Alphabet Code listing, Traffic control light signals; color & type, on ground and in flight, Useful frequencies on back of Imperial Oil (Esso) Flight Guide.
Along with a "Douglas" Combined Protractor & Parallel Rule made by The London Name Plate Manufacturing Co. Brighton, England
Asking $8.00 OBO
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