Qatar & Dubai Currency Board, 5 riyals, ND (1966), serial number A/4 224487, purple on multicolour underprint, dhow, oil derrick and palm trees at left, value at each corner, Khalifa bin Hamad al-Thani signature,(Pick 2, TBB B102a), uncirculated, a lovely example.
Estimate: £1,500 - £2,000