Mine: Bhutan
Bhutan pick 12b: 1 Ngultrum from 1990
ND (1990). Blue on multicolored underprint. Two signature varieties. Royal emblem between two facing dragons at center. Simtokah Dzong palace at center on back.
Serial number at lower left and upper right.
Bhutan pick 27b: 1 Ngultrum from 2013
ND (2013). Dark blue and orange on multicolored underprint. Two dragons. Back: Simtokha Dzong palace.