Watch List notes:

(x) Singapore, Board of Commissioners of Currency, $100, ND (1973), serial number A/5 664624, blue and mauve, orchid at centre, arms at top right, signature Lee Hsien Loong, reverse, sail boats at Singapore waterfront,, (Pick 6d, TBB B106d), in PMG holder 45 choice extremely fine.

Estimate: £200 - £250