I did not see a "drilling" in the photos, unless somehow I was mis-directed to different photos. What I see is a combination gun, one shotgun tube and one rifle tube. That's not a "drilling." Looks nice enough regardless, certainly not spectacular by any means, has a few issues it would appear, but overall a nice combo gun and worth of not only adding to a collection of such guns but also determining the exact round to put it back into use. Likely a 16 gauge 2 1/2" shell,but the rifle tube is hard to read, almost looks like it says 8mm, perhaps an 8 x 57R, using a 196 gr bullet. Someone with a better photo editor and better eyes can be a better judge of that. Proofed in 7/26 it looks like. A chamber cast is certainly in order to make that determination. These German combo guns are commonly very good shooters. I have a couple that are very similar and absolutely love to hunt them. If you get tire of it and want to trade for something more functional, look me up.
