Watch List notes:

Tahirid, Muhammad b. Tahir (248-259h), fals, Ramhurmuz 252h, rev., mimma amr bihi al-amir Muhammad bin Tahir mawla amir al-mu'minin 'izzat Allah (?),2.28g (Wilkes, Tahirids -), very fine and extremely rare, apparently unpublished
(300-400 GBP)