Schirmmütze für Mannschaften/Unteroffiziere der Artillerie

[CBH]

That’s the name and regiment of the original owner, which is a very nice addition to a very nice hat. Nice job on the repair. Plus now you can research the owner.

[hvm]

That’s the name and regiment of the original owner, which is a very nice addition to a very nice hat. Nice job on the repair. Plus now you can research the owner.

And so the second part of the fun begins.

Maybe tips for where I can start this search well (besides searching in Google)?

[CBH]

I’d start a new thread with a photo of the name tag and hat.
Somebody here will point you in the right direction, not really my area.
Best of luck.