SRI LANKA 1990 (VARIETY) R20 CHERRY BARB PROOF, PERF 12½ x 12½
R20 Cherry Barb single, perf 12½ x 12½, on Goznak (State Printing Works, Moscow) presentation card. Design as issued, but perf 12½ x 12½ compared to perf 11½ x 11½ of issued stamps. Very scarce. Fresh and fine. SG1136var; SC980var
