Howard;
I'm speechless ! Your post implies that all pre-IL Smith & Wesson revolvers are now illegal in Kalifornia ! Say it ain't so !
Larry
They aren't illegal to own, just to import into California. You can still buy them from a private party within California. You just can't order one from out of state or ship them within state. It's not the lock that makes it so, it's the California safe gun roster. The manufacturer must submit a gun for testing and then pay a fee every year to keep the gun on the roster. Guns that are out of production usually fall off the list. They are listed by model so a 10-1 is different than a 10-2 even if the guns otherwise appear the same.
I think once the gun achieves C&R status the rules are different. Of course California has it's own rules for C&R also (I think).