It was not the prettiest model 12, some rust and not too good of blue, but it was amatching serial number set with two barrel/forarm assemblies. I paid $300 for it in 1996 and was offered $950. honestly, I mostly used it for hog hunting with slugs before I bought a 30-30.
I looked into 28 gauge, the ammo is expensive!! Also, it looks like most of the loads are identical in velocity and shot load to the 20 gauge so I don't really get what niche it fills?