Brass Submarine Emergency Blue Light – US Navy 1930’s

Super condition, polished & lacquered – very rare!

When Red lensed light comes on it meant: Danger, Danger!

Perhaps a serious damaged hull or some other life threatening malfunction!

Clear lensed light stays on all the time to light the inside of the submarine.

Green light only comes on when trouble is cleared up!

They have been in our personal collection for over 50 some years.