10th-12th century AD. A hollow-formed biconical grey-green ceramic vessel with conical rim to the mouth, stamp detailing to the shoulder. See Arendt W. Irene Granaten des 13-14. Jahrhunderts, die an der Wolga gefunden sind, Zeitschrift fur Historische Waffen-und Kostumkunde, 11 (1926-8), p.42; Arendt W. Die Spharisch-konischen Gefasse aus Gebranntem Ton, ibid.; and Ayalon D. Gunpowder and Firearms in the Mamluk Kingdom, London, 1956, p.16. 678 grams, 10cm (4"). UK art market, acquired prior to 2000.