I ran across this this info while searching old tool makers, and thought i would share it.
https://www.archivingindustry.com/cutlers&toolmakers/cutlermarks-1.pdf
Thank You!
My Pleasure Papadan, and Thank You For the Thank You! When i see this kind of response it makes me want to share more interesting info that i find.
Take Care
Very interesting material ! Though we don't see many German tools here in the US, we do now and then. This will help in ID of what we do find.