9th-11th century AD. A pair of hollow ceramic vessels each with conical body, intended to be filled with explosive liquid and a wick, and used as a hand grenade; each with a stamped concentric circle decoration to the body, short neck and narrow aperture. Cf. Arendt, W. I., 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.; Ayalon, D., Gunpowder and Firearms in the Mamluk Kingdom, London, 1956, p.16. 1.2 kg, 12-13cm (4 3/4 - 5"). Property of a North West London gentleman; part of his father's collection formed during the 1980s; accompanied by an academic paper by military specialist Dr Raffaele D'Amato, dated 15 July 2019 and titled Eastern Roman Empire - Greek Fire Bomb or Hand Grenade (??????? k???????) 9th-11th century AD. [2, No Reserve]