Watch List notes:

Islamic Coins, Abbasid, al-Ma'mun, silver ¼ dirham (2), San'a 209h; 210h, 'rab' meaning quarter on last line of rev. field legend, wts. 0.65gms., 0.67gms. (A.1050R), about fine and good fine respectively, the latter centrally holed, both very rare (2)
(250-300 GBP)