I need help to ID an edged weapon, there are no pictures as yet but i will try to describe as best i can. This is what i would call a short sword style weapon or perhaps Hewer?. The blade is 18" long 1and a half inches wide and slightly curved. It has a solid brass handle with a german style eagles head, as per most german bayonets. On one side of the grip there are cut grooves onthe other smooth.The scabbard is black leather with brass ferrel with a ball end the blade end has a 2" frog hook also mounted in brass , both are stamped with inspection cyphers , unreadable, The crossguard is in the shape of an elongated S and has the markings 22.A.2.26. K, the rear of the blade has a crown with a large W beneath and the number 12 below that and again inspection cypher. The brass frog has the same markings as the crossguard, there is also a long leather frog attached,black in colour. There is no attachments for a rifle of any description.Any ideas anyone and possible value? Thank you.