FLASH GORDON SIGNAL PISTOL - MARX - USA
All steel- color decal- green with red trim-gray with red trim-makes whistling siren noise and sparks. Made in three colors: green, red, and greyish-purple.
Also made in a patriotic version not Flash Gordon-Air Raid decal-blue with red trim
A patent was granted in 1935. Pat No. 94312. Inventor Louis Marx. The gun was widely on sale in 1935.