5929998 Flintlock hand mortar c.1760-1770 (mortar, hand, flintlock) by Unknown artist, (18th century); National Army Museum, London; (add.info.: Flintlock hand mortar 1760-1770 (c). Hand mortars were used to fire grenades. The Earl of Albemarle family tradition notes that this example was used at the Siege of Manila in 1762 during the Seven Years War (1756-1763).); by National Army Museum .