Oman Currency Board, a group of low number notes from the 1972 issues, including 100 baisa, serial number 000617, 1/4 rial Omani 000736, 1/2 rial Omani, 000987, 1 rial 000906,, (Pick 7, 8, 9, 10, TBB B101-104), first prefix B/1, uncirculated, scarce low numbers (4 notes).
Estimate: £300 - £400