KHWARIZMSHAH: Muhammad, 1200-1220, LOT of 20 silver medium dirhams, type A-1721, without mint & date, but presumed struck only at Ghazna between AH615-617; prototype of the similar dirham in the name of Chingiz Khan (A-3701, formerly A-1967); average VF-EF condition, a few lesser, most with some discoloration; retail value $700, lot of 20 pieces.

Estimate: USD 200 - 300