I have posted this inquery on another site, I appologise for the redundancy but I really need help!! I am charged with disposing of a late friend's collection. There are two series 70 Gold Cups, made in 1973. Both have lightened slides. I have often read that series 70's don't have this feature. I need to set an ask price for these guns. Are they rare? If so, what would you set as value? Both are pristine (no blems that I can see) though both have been fired. Any input will be appreciated.