“BOMB, WHISTLE, MK I, MOD/ BU. ORD. DR. NO. 301047” (or maybe 8101-7?). is stenciled on the side of this item which appears to be WW2 vintage. It is made of thin sheet metal tubing 1.5” diameter with a flat base wooden plug in the tail end, and a conical wooden plug in the nose end, and both ends are painted green while the body is black. Length 15.5" weight 7.1 ounces. The opening in the side would produce a whistling noise as it falls through the air when dropped from an aircraft.
I cannot find any information on this item. My best guess is that it was a psychological weapon small and light enough to not waste valuable carrying capacity needed for high explosive bombs, and a number of these could be carried in some sort of clamshell container or even stacked loose on top of the real bombs. These would spread out considerably from the drop pattern of heavy bombs and presumably the noise would terrorize anyone in the target area as a bonus for a bombing raid. Alternate guess is that this might have been something dropped on troops during training exercises with minimal risk of serious personnel casualties but exposing them to the threats of attack from the air.
Does anyone have any info at all on this item?