21st and 824th Engineer battalions

[Christoph]

The mystery thing shows the sign of the French Maginot line. A member of another forum found the solution (the same forum who found the church in Manila). As this sign is found very often I cannot believe we'll also find the exact place where it was, but in France.

Christoph

 

Edit: Should read before writing: If he was at Mortefontaine near the Magionot line, maybe we will find the place.