WW1 German Trench Dagger.
An original WW1 Trench Dagger . A dagger with a deer antler grip. The blade appears to have possibly been maker marked. There is a faint trace of DRGM on the blade.
Civilian knives of this style were offered mail order to soldiers. many suppliers sold out of service surplus weapons.
Some pitting to the scabbard and the frog has become detached some time ago. The blade is good to fair with some staining. An interesting item that saw service.