LU'LU'IDS: Badr al-Din Lu'lu', 1233-1258, AR dirham (3.07g), AH656, A-1872M, cf. Heidemann-7d and 7e for similarly arranged gold dinars, citing the Great Mongol overlord Möngke, apparently the first known silver coin of Lu'lu' citing Möngke, similar to contemporary gold and copper issues; mint off flan, but likely al-Mawsil, VF, RRR.
Estimate: 180-240 USD