Tachometer, Sensitive, Type E-30, Kollsman C-119 Here is a very interesting

Here is a very interesting artifact: A cross-section of a wooden propeller blade from a WWII-era RAF Spitfire Fighter

one is a blue Acceptance tag

The face is embossed BU AERO US NAVY (i

likely for a large multi-engine aircraft

This is a fine example of an early WWII-era Gyro Horizon (Flight) Indicator

Tachometer, Sensitive, Type E-30, Kollsman C-119 Here is a very interestingThis is a Sensitive Tachometer, Type E 30, made by Kollsman, part number 2185 4 03, for an order by the US Air Force with a serial # prefix indicating year of manufacture of 1954. The dial markings are clear and the glass and case are intact. Measures 2 inches diameter by ~5 inches deep. See photos.