Watch List notes:

(x) Board of Commissioners of Currency, Singapore, specimen $50, ND (1972), serial number A/23 000000, blue and multicoloured, purple and violet on multicolour underprint, Vanda Rothschildiana orchid at centre, no signature, reverse blue, waterside Singapore scene(Pick 6 for type, TBB B105 for type), In PCGS Currency holder 64PPQ Very Choice New Hole Punch Cancelled.

Estimate: £2000 - £3000