I bought a lot of (7)SW boxes a few months back off of xbay. It was the only "blind buy" I have ever made in that i didnt know what the end labels were. But I just some boxes to put some of my older boxless J and K frames in. When I received them, all but 1 was a model 65 box. I found that interesting as the OP stated that they weren't the most common box available. I had kind of expected mostly model 10s. I think they were all Bangor Punta era. This thread makes me want to fill one if them