Posted by Mark Stewart on March 31, 2015, 2:15 pm, in reply to "Re: Fake 410 ??"
Probably authentic sideplates that were modified to fit the Crescent frame. You can't call it an LC Smith though when you sell it... still a Crescent. This may have been the reasonable fix 60 years ago when Crescent sideplates were more scarce probably than LC Smith ones, not necessarily a scheme.