Very nice "shooter"!!!

Question. I understand the measuring of the cylinder and all, but I thought the I vs. J frame was identifiable by looking at the size/length of the trigger guard?

Am I mistaken? I do not own very many of the older small frame guns and would like to know what to look for...or do I always need to put a tape on the cylinder?

The trigger guard on the pictured gun looks like the one on my early 60s M36...and I had assumed it was a J-frame.

Thanks.

Bob

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"Onward thru the Fog"