Interesting, so the only way you can tell if a S&W is all original would be the absence of the diamond by the serial number? Is this true in all makers, others besides S&W? Or do they use a variety of symbols to express that the part has been replaced? Also since my pearls do not have the S&W logo on them does that mean they are an aftermarket ad on. Just not made by Smith & Wessson? and if so do they have any value as such?