ABBASID: al-Rashid, 786-809, AV dinar (4.21g), NM (Egypt), AH171, A-218.7a, Bernardi-64, with the letter "M" above the reverse field, which almost certainly refers to the Abbasid governor of Egypt, Musa, whose name appears on dinars dated 171-172, magnificent strike, choice AU.
Estimate: 400-500 USD