unused 12c Dull Violet (151), unused, centered to T.L., some toning on reverse and light corner perf. crease, otherwise appears almost fine, with 1976 A.P.S. certificate, Scott retail $1,100.00est.

Details
unused 12c Dull Violet (151), unused, centered to T.L., some toning on reverse and light corner perf. crease, otherwise appears almost fine, with 1976 A.P.S. certificate, Scott retail $1,100.00est.