Ghost, I just checked, and left side says S&W, right side says 41 magnum, and inside of frame opposite crane says mod 58.
Now I gotta dig out my old Digests. I'm pretty sure they were listed there as M&P's.
Don't remember what they called the fixed sight 44 spls, (mod 24 or 26?) and 45 auto rims (mod 50?)in the 50's and 60's. What was the predecessor to the J, the 38/200 or 38s&w chambered w/ 4" and maybe 5" bbl. They called the snubby version the Terrier. Think NYPD may have issued 4" 38 s&w long long ago.
The classic M&P has always been the mod 10, 12, 13 or (6) series stainless, since before they went to the numbering instead of naming of models.
I will check it out, I've been wrong before.
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I'm thinking, I'm thinking!