Fuel Quantity Indicator 600 lbs (MD 500?) Spitfire Here is a WWII-era Directional

Here is a WWII-era Directional Gyro module of the Type A-3A Automatic Pilot system

Four playing card decks

This one was converted to AC at some point during its history

a yellow light would illuminate

Each deck contains four separate silhouette views of 13 different aircraft

Fuel Quantity Indicator 600 lbs (MD 500?) Spitfire Here is a WWII-era DirectionalThis Fuel Quantity Indicator displays fuel quantity from 0 600 lbs (~90 gal), made by Kratos. It has a date stamp of Jun 23, 1978. We aren't certain, but this may have been used in an McDonnell Douglas's line of MD 500 Defender helicopters, given its 600 lb capacity. The part number on the unit is not legible. Meausures ~2 inches diameter and ~5 inches long.