Unknown Firemans Bayo maker mark?

[mrcrtm]

I can not find this maker, anyone know? Thanks!

[Billy G]

Not unknown, your bayonet bears the mark of Hoppe & Hohmann, Minden. Scarcely seen & originally thought to be a distributor marking, H&H was actually a manufacturer of horseshoes which also made some blades during the 3R. The only blade I've observed this mark on is a Fireman's bayonet. Fisher's maker mark guide lists them as well.