I bought a 12 gauge 32" VH built in 1900 on a 3 frame a couple of years ago. Barrel weight stamped 5 pounds even, gun weight 9 lbs even. It was solid but very poorly refinished. Since it was unusual, had good dimensions and I hunt waterfowl I had it restored by Larry DelGrego & Son. Ivory Beads had a couple of 3 frame VH 12's not so long ago and both had some "issues" as I recall. The PGCA letter on my gun indicated the gun was to have 32" bbls, full and full, and to weigh 9 pounds. I am guessing they used a 3 frame to achieve the desired weight. I am interested in hearing the responses to your post.