On ne Passe Pas French WWI Sweetheart Tank Necklace Book but there are a few

but there are a few photos floating around that show freezing soldiers cramming bundles of sticks down the top opening to burn

Without the markings

but that is likely because the factory added backpack straps cover the area where the maker marking is usually found

There is some pitting and chips and rust on the blade

I don't believe any of them ever had a very good paint job

On ne Passe Pas French WWI Sweetheart Tank Necklace Book but there are a fewVintage WWI French sweetheart necklace with tank. "On ne Passe pas" (they shall not pass) was first used in the battle of Verdun in 1916 and was later used by troops defending the Maginot Line. It is unmarked. There is some discoloration patina on both the charm and the chain.