I am hoping to receive a ballpark value of a S&W K-22 with a 6" barrel 4 screw a friend of mine has for sale. I won't see it in other than picture form until later today, hence the lack of detail. What I do know is he states the bluing to be 90% and it appears to be, the hammer and trigger sound like .500 with diamond target stocks. I forgot to get the serial # and am now unable to contact him so as I said not many details. I have no experience with this (Pre-17 ?) but I have owned both a later model 17 and 18 and really enjoyed them. He is thinking it's value to be around $600 and I said I would ask the pros. I hope this is the correct venue but I thought it had to be old enough to meet this criteria. Thanks in advance for any help or comments you might be able to provide.