Watch List notes:

Qatar 100 Riyals 2006 Gold Proof, Reverse: Central Bank building KM#18, 17.00 grammes of 0.92 gold, FDC in the box of issue with certificate, struck by the Austrian Mint Corporation, a rare issue with just 300 pieces minted. Our research has uncovered only one other piece currently on sale online, this at over £1800

Estimate: 1200-2200 GBP