Sultanate of Oman, a Set of 4 x Silver Proof Rials 1996, issued to commemorate the 26^th National Day Anniversary; the reverses depict four of the different types of sailing ships that helped establish Omani overseas trade, obv. ‘CENTRAL BANK OF OMAN’ & Omani arms; each rial 38.61mm, 28.28g .925 silver, with certificate of authenticity, struck by the Royal Mint, individually encapsulated in case of issue, FDC.