Sri Lanka 26.3.1979 P-88a PMG Superb Gem UNC 68 EPQ 100 Rupees
From the very popular "Flora and Fauna" series of Sri Lanka, this is the highest denomination of the series which has become very difficult to find in recent years. This example is tied with one other example for the finest in the PMG population report.
PMG Population in 68 EPQ: 2 (0 Finer)