I recently got this Charles Daly (Sauer) drilling. Any help with these proof marks be greatly appreciated. I the serial number is 39885(I am guessing mid to late 1890s). Was sold as 30-30 but if that is same as modern 30/30 there is no neck down case and the chamber looks fairly unform(not a necked down case). This is my second drilling and these are never sold accurately. (Last was suppose to be 20g ended up being a 16g lined to shoot a modern 28g over 11mm Mauser.). This one so far at least the shotgun caliber is correct 12x12. [img]https://postimg.cc/gallery/KFdbT88[/img]