Watch List notes:

Central Bank of Oman, specimen 50 rials, ND 23.07.1982, serial number A/1 000000, olive green and multicoloured, signature of Sultan Qaboos bin Said at centre, reverse Jabreen Fort, (Pick 21s), five diagonal red Arabic overprints on obverse, five diagonal red SPECIMEN overprints on reverse, uncirculated, rare.

Estimate: £800 - £900