1000 Dollars MAS

The S$1000 note occupies an awkward position in Singapore's currency history: high enough in face value to be useful for large commercial transactions, but increasingly scrutinized as regional anti-money-laundering pressure mounted. The Monetary Authority announced in 2021 that it would cease issuing the denomination entirely, and unredeemed notes remain legal tender though they rarely surface in everyday commerce.

Pick 51 belongs to the Portrait series, the MAS's longest-running family of notes, first introduced in 1999. At this denomination, watermark security alone is a notably sparse feature set by the standards of contemporary high-value currency — the S$10,000 note, discontinued in 2014, carried substantially more.