Second "one more"!  This shows a pin set in the side of the frame that is a stop for the rotary extractor.  It is only visible from the inside.

Steve, Yes it is 38 extra long, (correction 38 long not extra long), at least that fits the chamber.  The crack was discuses a while back in this thread. (You need to Login or Register to view media files and links)
My opinion is that the cartridge had nothing to do with the cracks.  The pins, hammer and breech block are still tight and do not contact the frame.  It doesn’t appear to have been abused so I think over 150 years of handling, use, wood expansion and contraction it has worked on the frame and cracked it.  When I discussed it with Peter at Restorative Welding he said he has seen this on many different makes not just the #2 Rolling blocks.
Bob

Had to dig mine out of the safe, as I was uncertain what serial number range it was in? But mine appears to be from decades later than these #2's. It's in the 20,000 range, so a lot newer.
Mine is a .32-20, and in pretty nice shape. I've used it out to 500 yds. and it's amazingly accurate even at the mid range distance. Bore looks like new, and it has all the original finish on wood, and maybe 95% barrel blue. It has no steel tip, and just the ebony V in the forearm tip. 26" barrel.
It does have a very strange breech block, as it appears to have a sight notch in the center, even though it has a rear Rocky Mountain style barrel sight?

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I have changed the sights for long range shooting, so it has a mid range vernier, and a globe front. The vernier is a modern repro.

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That V-notch is interesting.  I have a .32-20 #2 in the 42,000 range, very late production. But no V-notch.

Oh yes, I recall that discussion now - thanks.

I took a good look at mine with a magnifier, but didnt see any cracks. Here is a better pic of that area. 

bobw wrote on Jun 30^th, 2021 at 12:10pm:


Have to take a couple Bob. I set the camera on Macro to try to get a clear closeup of it, but maybe I need to just leave it on auto and let the camera figure it out.

Bob - do you think the rotary extractor would be a problem with modern brass and a cleanly cut new chamber? I would think it would be ok for something like .32-20.