Vintage Knife Question

[DaPlayer]

I am hoping some one might know some info on a knife I have.
Say's it's from Solingen, Germany.
But can't find how made it. Has a bull logo. But doesn't seem to be from Bull knife co.
Any help would be greatly appreciated.
Thanks, image included.
DaPlayer12904

[StanW]

Looks like a Schmidt & ziegler - they used that el toro logo

[DaPlayer]

Thanks for your time.
DaPlayer