Temperature Indicator, Dual Engine, Oil or Coolant, -70 to +150d C, AN5795-6 F-14 The lid contains a calculator

The lid contains a calculator for speed

The dial markings are clear and precise

which could be opened and cleaned if desired

and top of the P-80 aircraft

The tamper-evident wire and seal are still intact

Temperature Indicator, Dual Engine, Oil or Coolant, -70 to +150d C, AN5795-6 F-14 The lid contains a calculatorThe Army Navy Type AN5795 6 Dual Engine Oil or Coolant Temperature Indicator was used across a number of US Army Air Corps, Navy, and Air Force aircraft during WWII, including heavy bombers B 17, B 24, B 29, medium bombers B 25 and B 26, as well as light bomber A 20, according to the Accessories Interchangeability Chart dated Feb 1945. This indicator was made by Edison, part number 33203, and has a serial number prefix of AF43, indicative of a 1943