Byzantine Pottery Hand Grenade for 'Greek Fire'

Byzantine 'Greek Fire' Fire Bomb or Hand Grenade 9th-11th century AD. A ceramic piriform vessel decorated with circumferential band of stamped 'rosettes' between borders with additional borders at the foot, intended to be filled with explosive liquid and wick and used as a hand grenade. 318 grams, 11cm (4 1/4"). Fine condition, sealed. Provenance From the private collection of Mr PA, formed between 1980-2010; 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