I'll have to look, the IJ is my dad's and he said it's a 32 colt but its very possible he is mistaken. Those are some beautiful IJs, I have one in 38 but it's no where near that condition but functions well.Hmmmmmmm, are you sure about the IJ? I have never heard of one being chambered in 32 Colt. For your viewing pleasure here are a couple of my IJs (38 S&W).
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Something else to verify is if either of the revolvers you’ve mentioned are smokeless or BP frames. I know on the IJs if it has a leaf main spring it’s BP but that’s not necessarily so with the H&Rs.