Thanks, Fryboy, I'll call Lyman and see if I can get one, or perhaps make one out of top cowhide formed like windmill standing-valve leathers that fits under the brass ring. The brass ring is undamaged, I checked it out very closely and did a "light test" in the res. bore with a light shining through the screw whole in the bottom, only gap was at the split. Thanks fo the tip on the handle, I'll see what Lyman wants for it. It came with a homade replacement, but it is entirely unsatisfactory. I might be able to build a correct one from those drawings.

Gear