US Bomb, 50 lb Photoflash, AN-M46, M46
The Photoflash Bomb AN-M46 was developed so that planes engaged in night photography reconnaissance need not be limited to low altitudes.
In appearance it resembles a conventional light-case bomb. Uses a Fuze M111A2 in the nose, but it is issued unfuzed. It also has two suspension bands for rack and shackle suspension.
Because of the brilliance of the flash, it is detrimental to the vision to watch the explosion of photoflash bombs. Extreme care should be exercised in handling these bombs, because the charge is very sensitive to friction, shock, and temperature.
Collaborative Ordnance Data Repository