OK.
I was WRONG about the serial number. It is 8933XX. The serial number I used is from a newer Model 10-8.
I am so sorry for the mistake.
8933XX probably shipped in the early months of 1942. Does it have anything stamped on the topstrap, like UNITED STATES PROPERTY? The grips are from much later, and it also appears to have been refinished. In any event, it is a shooter, not a collectible. Some collectors might call it a pre-Victory model.
Steve, that couldn't possibly be the SN because that SN would put your 38 M&P as being manufactured in 1981. 1981 is long after model numbers were issued and your gun should be stamped MOD. 10-?. So, look on the butt of the gun, on the face of the cylinder and under the barrel on the extractor flat for the SN. Should start with a V or an S.
It doesn't have any markings on the top strap. And I'm pretty sure the grips are not original either. I picked it up several years ago and gave very little for it due to the condition it is in. So whatever it is, I'm not hurt as far as the money goes.
Thanks for your help.