I looked at some photos of Neumann doubles and a some of them had those distinctive bolsters. It will be fun to try to decipher the marks.
Pete, I took a look around your website. Wonderful stuff there! Gorgeous pics and a trove of info, including lots about French & Belgian marks!
I was going to ask if anyone had an idea of what the intended load for a 3-inch 6.75-pound gun would have been around 1930. I was thinking that 1 1/4 oz would be the heaviest I'd think of for this gun, and I'm not sure I'd even go that high. I'd guess 1 1/8 would be okay in the field and lighter for targets.
Any thoughts on using 2.5" shells in a 3-inch gun? Randy Wakeman among others describes pattern degradation for 2.75" sells out of 3.5" chambers. I ask because my other 12 is a 2.5" gun. I plan to spend some time at the pattern board this winter and spring with all my guns, but I'd be interested in hearing about the experience of others.
Bill