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U.S.A.A.F. B-17 External Temperature Gauge

By Rochester Mfg. Co. Type C-13B. Part No. 1592. Small brass, circular gauge, 5cm diameter. Black dial with temperature readings from -70 to +50 degrees centigrade. Cylindrical rear section screws to the gauge with a rubber washer between. This would have been fitted to the front turret of the B-17 Flying Fortress - through the perspex with the gauge on the inside and the \'probe\' on the outside. These can often be clearly seen on wartime photographs. Some paint loss to the \'probe\', otherwise in excellent working condition. Fully AAF marked. Rare. Stock code M14763.