Well, excellent effort on her part. Look for a set of initials on the underside of the stock or near the grip. I know that Walter Triebel was a master stocker at this time but I don't know just how he was related to the folks at the Chr. Friedr. Triebel concern. Some sources give it was founded in 1800 and there are some indications that a firm was founded in the mid 1700. Now sure who the owners might have been at the onset of WWII. But I do think it to be the same source that H.A. Lindner sourced for the forend effort.
Kind Regards,
Raimey
rse