No4 Battle damaged relic....

[RobSmith]

Common wisdon is that many if not most of the relic ordnance/grandpa's war souvenirs currently in people's homes are actually live. I know I wouldn't be using an old shell as a door stop unless I could verify that the thing is empty. I tend to stay well away from this stuff unless the previous owner has disassembled it so that I can both take a careful look at the fuze looking for a cap, booster, or gaine, as well as take a peak in the main body cavity of the projectile with a flashlight to make sure the entire cavity is bare metal rather than filler...

I know of one incident when "grandpa's ww1 grenades from ww1" ended up being suspected to be the source of a rather impressive explosion when the house burned down...