Watch List notes:

(x) Saudi Arabian Monetary Agency, 5 riyals, 1379 (1968), serial number 40/492304, green on multicolour underprint, Dhahran airport at right, also 10 riyals, 1379 (1968), serial number 182/885060, blue-grey, the Holy Mosque in Mecca at centre, (Pick 12a, 13a, TBB B11a, 12a), uncirculated (2 notes).

Estimate: £280 - £380