Do any of you know the current value of the Smith & Wesson 686 "Midnight Black" 6" SS revolver. I have a chance to pick up a matching pair with low serial numbers. These are LNIB. Sorry no pics to post. I have read a few articles and viewed a couple of auctions but am not much further than I started. Would appreciate any info the membership can give me on this item in order to make a fair decision. Thanks to all in advance. A.L.