Watch List notes:

Abbasid, temp. al-Rashid, mule Dirham, al-Muhammadiya 182h, rev. muhammad / rasul / allah, 2.98g (Lowick 1791 var.). Very fine and extremely rare.
This anonymous reverse type was not introduced at al-Muhammadiya until 188h; this coin must therefore be a mule struck after that date using an old obverse die.

Estimate: £150-180