SRI LANKA 1995 R1 GENERAL POST OFFICE CENTENARY IMPERF PROOF
R1 General Post Office Centenary imperforate proof single on ungummed matt paper featuring multiple crescent and star watermark (typically used for stamps of Pakistan where this Sri Lanka commemorative was printed). Includes normal which was issued on thicker glossy paper without watermark. Superb and scarce. SG1305var; SC1139var
