
This is a spin stabilized, illumination projectile. The illuminating projectile is a thin case with a very small expelling charge just behind the fuze and an interior assembly of a star or candle with a parachute and a very lightly held base plug.
Fuzing consists of nose time fuze only.
The projectile body is light blue with two white stars.
No information about functioning.
No information about hazardous components.
Nothing else to see.
OP 1664, Volume 1 - US Explosive Ordnance (1947)