>>2228173EODfag from /k/
Its the fired alloy cartridge from a flare pistol some retard has tried to hammer into a block of wood like a nail and fucked it up.
>>2227593No idea from that angle.
Size?
A better view of the bits on the end?
Location? Are you in a historic 20th century conflict zone?
Provisional wild-guess, its a small engine fuel tank or similar fluid reservoir.
It doesn't immediately look like Ordnance.