Watch List notes:

Board of Commissioners of Currency, Singapore, $500, ND (1972), serial number A/1 057801, green and multicoloured, Shangri-la orchid at right, Hon Sui Sen signature with red seal, (Pick 7, Tan O-7a, TBB B107a), in PMG holder 55 About Uncirculated, scarce.

Estimate: £600 - £800