cover, allowing complete surprise for the first shot. They were extensively developed for Continental European land defenses, but little used elsewhere. See also List of disappearing gun installations Coastal artillery Seacoast defense in the United States References Hogg, I.V., "The Rise and Fall of the Disappearing Carriage", Fort (Fortress Study Group), (6), 1978 Hogg, Ian V., "Illustrated Encyclopedia of Artillery," Chartrwell, Secaucus, NJ, 1978 External links The Moncrieff Disappearing Counterweight Carriage The Hydropneumatic Disappearing Mounting BL 10-inch gun Mk III disappearing mounting diagram at Victorian Forts and Artillery website Sales brochure from 1895 for the Buffington-Crozier disappearing carriage Drawing and description of the balanced pillar carriage, from Ordnance and Gunnery, 1915 Artillery by type Military equipment of the late modern period Warfare of the late modern period Military history of the United Kingdom Military history of New Zealand Coastal artillery Victorian-era weapons of the United Kingdom World War I artillery of the United States World War II artillery of the United States