Fuel Flow Indicator, Dual Engine Bendix 6007-68C-7-A, PV-1, PV-2, P2V USNavy C-47 Here is an Altimeter used

Here is an Altimeter used in military aircraft of the Air Service

and resetting is simplicity itself

There are some markings on the glass denoting the operating limits and orientation of the glass (the white mark

These correspond respectively to the Services' G

which would be displayed on the ALT gauge

Fuel Flow Indicator, Dual Engine Bendix 6007-68C-7-A, PV-1, PV-2, P2V USNavy C-47 Here is an Altimeter usedThis is an authentic vintage Dual Engine Fuel Flow Indicator as appeared in the US Navy and US Coast Guard Patrol Bomber Lockheed PV 1 Ventura, as well as the Lockheed PV 2 Harpoon, and P2V 7 Neptune, made by Pioneer div of Bendix, PN 6007 68C 7 A. See photo of PV 1 Instrument Panel from the Pilots Flight Manual dated 1944 showing instrument location. Its face has embossed "BU AERO USN" i. e., Bureau of Aeronautics, US Navy. It is also stamped with