I got a few more pics of proof marks. Looks like a 16 gauge SxS, over a .410 equivalent rifle. 2 numbers are repeated, "2222" and "124". What do those mean? And there are stamps above the 67/47, but they are hard to make out, any recognize them?
https://ibb.co/pPzSH9n
https://ibb.co/qWtLZPh
https://ibb.co/c69XVYk
https://ibb.co/HK2GstL
https://ibb.co/7G5LDd4
https://ibb.co/4jV731m
https://ibb.co/sKrnX8j