Watch List notes:

Singapore

Board of Commissioners of Currency, Singapore, specimen $5, ND (1989), serial number A/1 000000, green and multicoloured, red-whiskered bulbul at left, arms at right, Hon Sui Sen signature with red seal, red SPECIMEN overprint, in PMG holder 66 EPQ, gem uncirculated
TBB BNP104, Pick CS4, KNB 22 S$400-S$600