Singapore
Board of Commissioners of Currency, Singapore, printers archival obverse (2) and reverse (1) progressive proofs for $100, 1966, blue or purple, no serial numbers or signatures, typed annotations and dates '8.11.66', in PMG holders 50, 53 and 55, about uncirculated, very rare and attractive (3 notes)
TBB B106 for type, Pick 6pp1, KNB 6pp S$6,000-S$8,000