Temperature Indicator, Dual Engine, Oil or Coolant, -70 to +150d C, AN5795-6 F-14 these are essentially 2-disc

these are essentially 2-disc

The tamper-evident wire and seal are still intact

This is a nice example of the US Navy's Vertical Speed Indicator R-88-I-750 as used in the SB2C Helldiver Dive Bomber of WWII

made for US military aircraft applications by Elgin (MS28020LI)

as long as you "Handle Like Eggs"

Temperature Indicator, Dual Engine, Oil or Coolant, -70 to +150d C, AN5795-6 F-14 these are essentially 2-discThe 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