That SN in no way resembles a factory stamped SN from the era in which that pistol was manufactured. Whether or not it's the correct SN is not for me to say . . .
Is there a number on the back side of the extractor?
No numbers on either the cylinder or crane. I'm guessing replacements sometime in the past...
Prophammer:
Just to clarify something, you said in your original post it was rusty and worn everywhere, which is not the gun in your photos, so did you already refinish it?
Also, in reference to your question about the U.S. stamp on the backstrap, the Air Force apparently did receive some Model 10's so marked. See the link to the older thread I've pasted below:
http://smith-wessonforum.com/s-w-hand-ejectors-1896-1961/360406-model-10-us-marked.html
But what about the back side of the extractor?
Here is a Model 10-5 s/n D571184 that shipped in February 1973. Note there is no s/n on the barrel flat or rear face of cylinder but . . . lo and behold . . . there it is on the rear face of the extractor star (I apologize the s/n stamping on this example is not as legible as most)
IF I were wanting to know more about this revolver's history I would look there and start my research with the real serial number.
Russ
Yes I had already re-finished, not to mension several hours of fitting and getting things properly timed. A lot of work to end up having it destroyed. The way things are shaping up I'll likely strip it to the frame and either destroy and forget or turn it in. Like I said I paid almost nothing for it, no real loss financially.
I concur a sales recept with that s/n would close the books,If the original serial number was ground off and the frame refinished, a police crime lab would be able to raise the original number through one of several processes. Think a state police crime lab, not a suburban P.D., which usually struggles with anything more complex than finding a fingerprint.
There is no way to establish the origin of this gun without the original number.
The current owner bought it in a licensed gun shop after an NCIC check on the number currently there, and my guess is unless he shoots somebody with it, and the investigating officer is a S&W fan who recognized the current number isn't factory, this just isn't going to happen.
I think this is a non-issue in the real world.
Non issue. Purchased legally at an FFL, went thru NICS check.