The "Flagship" sale of United States stamps #660

10¢ black (2), vertical pair, gorgeous light red cancellations, exceedingly fresh and choice example of this extremely elusive vertical pair with breathtaking brilliant color, margins a bit tight to touching along the left side, otherwise a remarkable pair with gorgeous color; some faint manuscript offset on reverse mostly confined to the bottom stamp is of little consequence and isn't mentioned on the accompanying certificate, otherwise F.-V.F.; clear 1980 P.F. certificate. Scott $2,600.