This week a bayonet styled, but non-fixable Weyersberg Kirschbaum & Cie (WKC) knife with a 155mm long blade. There is no mortised slot in the bird’s head pommel nor is the push button functional. These also came in a similarly styled, but fixable and fully functional bayonet variant too. The WKC company is still making quality military blades today see here Military Swords, sabers production by WKC Solingen, Germany, since 1883
Double click on picture to enlarge.