Watch List notes:

(x) Board of Commissioners of Currency, Singapore, a group of the ND (1976-1980), series comprising $1, 5, 10, 20, 50 and 100, all bird designs, all Hon Sui Sen signature(Pick 9, 10, 11b, 12, 13a, 14c, TBB B110a, 111a, 112b, 113a, 114a, 115a), the $20 fine, balance extremely fine or better (6).

Estimate: £150 - £200