US Army Air Forces Felsenthal True Airspeed Computer A.C. Type G-1

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Country of manufacture: USA,            Date of manufacture: ____
Diameter: 20.5 cm,          Thickness: 4.5 mm,           Weight: 108.5 gms
Materials: plastic inner & outer circles, cursor
Scales: 4, specialized
Front: True Airspeed, Indicated Airspeed [ Pressure Altitude, Air Temperature ]
Back: Blank
Gauge Marks: [      ]
Condition: C4 (minimal signs of use)
Came with: nothing

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