Watch List notes:

Saudi Arabian Monetary Agency, 50 riyals (2), AH1379 (1976), green and purple, the Mosque of Al-Masjid al-Nabawi in Medina, King Faisal at right, signatures of al-Qurashi and Al-Khail, 100 riyals, blue and multicoloured, the Holy Mosque in Mecca at centre(Pick 19, 20, TBB B118a, b, 119b first almost uncirculated, balance uncirculated (3).

Estimate: £200 - £300