Concerning this special dagger shown here it seems to be (for me) a mixture of parts. The scabbard seems to me beeing from EICKHORN(?), the green washer would fit to a PUMA dagger, the black grip has two different kinds of wire wrapping, unmarked, plain blades commonly are used in daggers which can be surely linked to the WKC company, so I am not very certain that this dagger has been produced in this configuration in a firm.
Regards,

wotan, gd.c-b#105

"Never look for sqare eggs" as a late owner of an original FHH-dagger used to say.