US Bomb, 100 lb Photoflash, M122
These are freefall, fin-stabilized, photoflash bombs designed to airburst at advantageous heights to provide illumination for nighttime aerial photography. A box-fin, permanently attached to the bomb body, and a filler hole closed by a cover plate, are located in the tapered end of the afterbody. The magnesium-aluminum composition in the M122 contains no oxidizer and depends upon atmospheric oxygen. Therefore, it is relatively insensitive compared to photoflash powder.
The bombs may be painted gray with black markings, olive drab with white markings and a white band, or white with black markings.
Nothing else to see.
Collaborative Ordnance Data Repository