US Projectile, 3 inch Illumination, Mk 24 Mod 1
These projectiles are for illuminating targets by a parachute flare. 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. Explosion of the expelling charge forces out the base and the interior assembly.
The overall color of these projectiles is light blue with two white stars.
Nothing else to see.
Collaborative Ordnance Data Repository