
Airport Flare M13 is used to provide illumination for airplane landing at emergency fields, and to illuminate targets and objectives. A further use is to prevent infiltration or surprise by enemy troops.
The flare consists of a cylinder; the top cover sealed with a strip of adhesive tape, and a seven-inch hollow chip-board tube mounted to one end of the cylinder.
Remove the adhesive tape and slip the hollow tube over a rod stuck in the ground. Pull on the lanyard attached to the ignition wire to fire the flare.
Nothing else to see.
OP 1664, Volume 1 - US Explosive Ordnance (1947)
USNBD - Bombs and Fuzes, Pyrotechnics (1945)
TM 9-1904, Ammunition Inspection Guide (1944)