Watch List notes:

(x) Saudi Arabian Monetary Agency, specimen 50 riyals, ND (1976), serial number 1/000000, green, purple and brown, King Faisal at right, interior of the Prophet's Mosque at centre, value at each corner, signatures of al-Qurashi and Al-Khail, reverse arms and colonade, (Pick 19s, TBB B118as), PMG 64 Choice Uncirculated, perforated, red SPECIMEN overprint.

Estimate: £1,500 - £2,000