Good Morning Folks, This may be an unanswerable question, but I'm going to ask anyway, just in case someone does happen to possess that knowledge ? S&W's Model 640, w/ 3" Barrel was only produced for approximately 3 +/- years, according to most sources. Based upon my own observations, along with those by others, this particular Model appears to have been observed very infrequently, which based upon the short production span, would lead us to believe it was manufactured in quite limited numbers ? If anyone happens to have any information regarding the approximate quantities of M-640 3" versions produced, I would truly appreciate hearing from them, THANK YOU

[ RE: My 3" bbl'd M-640 [ no dash ] is Serial # BFV5XXX. Be advised that I am also able to provide any related Box Label data, if requested. ]

Best, dpast32