Just off the top of my head, I believe that there were two sources for these guns...
1. British Army S&W AND Enfield/Webley military cast offs after WW II in .380/200.
2. S&W contracted guns in both .380/200 and .38 Spl.
I'll have to check my books when I get home this evening.
I've seen any number of these guns. They're decent WW II (mostly)-era S&Ws.
They're normally not the Lend-Lease guns (which were stamped "US Property"), but later "Victory" models.
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Smith & Wesson is dead to me.
If you want a Smith & Wesson, buy USED!