ISLAMIC. Caucasus (Post-Mongol). Sheki. Temp. Mehmet Hasan Khan, A.H. 1212-1217 / A.D. 1797-1802. AR abbasi. 2.17 gm. 23 mm. Nukhwi. A.H. 1215 / A.D. 1800/1. Album 2949. Extremely Fine; beautiful iridescent tone; sharply struck except for small area of flat strike. Rare.