Watch List notes:

Abbasid, al-Mu'tamid (256-279h), dinar, Madinat al-Salam 269h, obv., with letter sad below field, 4.19g (Bernardi 177Jh, date not listed), with curved cancellation punch in obverse margin, fine and of the highest rarity, apparently an unpublished date for the mint
Estimate: 500-700 GBP