Early 1/2 Frame 12 Gauge Lifter?

[Jay Oliver]

Thanks for the replies. I was referring to the wall thickness at the chambers/breach. In the picture below you can see there is just enough room for 2 12 gauge shells and not much "barrel material" around them.

At some point the pin was welded/converted so it no longer extends when the the gun is open(I think that was a common practice).

I like it more and more as I look it over. It will be interesting to see what the letter says.