I'm sure we discussed this somewhere but I can't find it.
I am trying to put together information on the variations in the size of butt fixtures: rubber, dogs head and skeleton. I assume the size is tried to the frame size or gauge? How were they designated and/or marked and were they serial numbered to the gun? How many different sizes did they use? I assume that a specific size would span several frame sizes; 00 & 0 and maybe 1? 1.5, 2 and maybe 3? And 4 and all larger were the same (My guess here....)?
As an example, on a 1 frame, a skeleton would be a #? and a dogs head would be #? ... and so on....
You think we could gather up a picture of these examples for our FAQ section??