Help with identification of marking on pocket knife

[Billy L. Gill]

Question: Seeking information regarding Diamond Shield with Bull in Center on folding pocket knife.

[knifeaholic]

Schmidt and Zeigler "Bull of the Woods" brand from Solingen Germany...check these forums someone just started a thread about the brand

[Billy L. Gill]

Thanks, knifeaholic. We have some photos of Schmidt and Ziegler logos, and the ones we've seen are just a bull *without* the diamond around it. I have attached a picture. Is this also a Schmidt and Ziegler or is this something else? It does not have the 'SCHMIDT ZIEGLER' stamp on the tang. One blade has '513' stamp and the other has 'SOLIGNEN'.