Watch List notes:

MUSCAT & OMAN: Sa'ud b. Taimur, 1932-1970, 6-coin proof set, AH1390, KM-36, 6-coin proof set, all PCGS graded, includes 100 baisa (PF-66), 50 baisa (PF-67), 25 baisa (PF-67CAM), 10 baisa (PF-66RD), 5 baisa (PF-67RD), and 2 baisa (PF-66RD), a lovely well-matched set, set of 6 coins.

Estimate: 300-400 USD