lot of 19 pcs very high end BNC to SOLDER connector. or make an offer on qty that you need mixed lot SOME ARE KINGS WITH GOLD CENTER, SOME ARE AMPHENOL WITH SILVER CENTER These are SILVER PLATED old stock VERY HARD TO FIND SINCE THE NEW ONES MADE ARE NO LONGER SILVER (and these are made back when they plated thick!) Were often used in aviation and other critical important equipment. These are great for SDI and digital video, due to the low loss characteristics and precious metal plating. NEW old stock SEE OUR OTHER LISTING FOR SIMILAR USED ONES. We got them in bulk old box so not sure of prior history. May have some signs of bulk storage etc. Some are darker than others but as I am sure you are aware silver does that and does not affect its ability to conduct.