Grasshopper was the nickname for a cannon used by the British in the late 18th century as a light battalion gun to support infantry.
The Ordnance QF 3 pounder gun was a 47 mm British tank gun based on the Ordnance QF 3 pounder Vickers naval gun, mounted on Vickers Medium Tanks in the 1920s and 1930s.
The Ordnance QF 3-pounder Vickers (47mm / L50) was a British artillery piece first tested in Britain in 1903.
The QF 3 pounder Nordenfelt was a light 47 mm quick-firing naval gun and coast defence gun of the late 19th century used by many countries.
The QF 3-pounder Hotchkiss or in French use Canon Hotchkiss à tir rapide de 47 mm were a family of long-lived light naval guns introduced in 1886 to defend against new, small and fast vessels such as torpedo boats and later submarines.
The Vickers Medium Tank may refer to one of the series of tanks built by Vickers-Armstrong during the 1920s.