Watch List notes:

(x) Saudi Arabian Monetary Agency, specimen 50 riyals, 1379 (1968), serial number 16/000000, brown on multicolour underprint, the Mosque of the Prophet in Medina at right, arms at centre, signatures of Anwar Ali and Abdul Rahman, reverse palm trees and arms(Pick 14as, TBB B113as), perforated SPECIMEN OF NO VALUE, in PCGS holder 64 Apparent, mounting traces, rare.

Estimate: £2,000 - £3,000