Watch List notes:

(x) Saudi Arabian Monetary Agency, 1955 Haj Pilgrim receipt issue 1 riyal, serial number 18/902140, red on brown underprint, Palace of King Saud at centre, value in each corner, Standish and al-Saban signatures, reverse brown, arms at low centre(Pick 2, TBB B3a), uncirculated thus scarce.

Estimate: £300 - £400