Japanese Balloon Bomb....

[David Dunlop]

Interesting that all the support structure pieces of this balloon bomb were found right beside the main bomb. I thought that the weapons were all released from the balloon first, at which point a delay fuse was ignited that eventually set fired to the balloon itself. That would suggest the balloon would travel some distance from where the ordnance was dropped, before self destructing.

Perhaps this one got hung up in a tree before the bomb released and landed in soil too soft to detonate it. The envelope of the balloon eventually rotted away and all the remaining fiddly bits fell down around the HE bomb.

David