Where do you think that came from ? Shows you need to be careful when digging.
I don't know where he found it, but here in europe it is rather common and you know (quick enough) on which area's you need to reckon with such finds. But they can incidental turn up almost everywere (even happened in public childrens playgrounds
).
Found me multiple, from simple handgun and riffle sheels and 20mm granades through handgranades and mortars like these, into 17 an 25 pounders (which are big fellows). To glad i never found an even bigger complete airplane-bomb (did found pieces of those). All reported and removed or destroyed on the spot!
You know what the problem is with militaria?
On youtube and such you see nice stuff pass like helmets and riffles and more. But think about how many ammo was fired before one lost his helmet or riffle?
So what do you think we find most??
I have found some nice militaria finds in my detecting carreer, but found me 100 times more ammo and pieces of it, among it 10 times live ones, to eventually find those nice objects.
How many granades had to be fired to make me find those tank track pieces? Found tens of gun shells among which was that one gun cleaning tool i found. Several hunts i had to be happy with gun shells and bouncing betty balls without nice object. Helmet? Gun? Never found one.
To not even start about the scrapnell pieces which beep even for 1½ x 1½ mm slivers.