Tom, That "???" has a lot of bearing on its utility. With the Berlin address, it is almost certainly a pre-war gun (there is likely a three number date code on the flats). That means the rifle is almost certainly metric. If an 8x57R, 9.3x72R, or 7x57R, then no problem, but the calibers can start to get fairly exotic from there. Does it have a scope or at least claw bases? Most of the "liberated" guns game back without scopes. The glass was usually kept in a leather carrier which was missed when the home was searched or was kept by the owner/family when the gun was turned in.
