Hi there.
I have just registered to the forum as I have just got one of these guns and was doings some due diligence on the proof marks. It came from a very reputable dealer but I always like to make sure.
Interestingly, mine has all the same proof markings as yours, although they look like they have been stamped at 4:55 on a Friday afternoon.
Mine doesn't have the proof stamps on the barrels, only down the middle of the barrels, but what seems to be odd about mine is that if you believe the proof, it has been chambered for 12ga magnums, as it is stamped 12-76
i am confident it will be fine, as all the parkemy 410s I can find are chambered for a 3 inch shell, but I am guessing that’s whoever proofed the gun was probably in a massive rush, hence the wonky stamps and the incorrect gauge stamp on the gun
anyone have any thoughts on this?
