Well I wouldnt dig too deep in Normandy...

... I spoke to a French Bomb Disposal Team last time I was there and the place is littered with stuff.

Be VERY careful with what you touch...

I know from experience having found an unexploded 3" mortar shell near hill 112.

...and fat chance of finding a helmet... Though I did get a gas mask canister a few years back.

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"Watch that Fu*ker, he'll 'ave someones eye out!" King Harold at Hastings 1066.