On Centre Bastion. Some time between 1845 and 1895 the Two concrete gunpits for 9.2-in. BL guns on disappearing carriages, with underlying magazines. Mainly obliterated but some traces may remain (1), site photographs (2,3).

Coast defence battery of 2 x 7" rifled breech loaders, 2 x 9.2" breech loaders on disappearing carriages and 2 x 64pdr rifled muzzel loaders replacing earlier armament some time between 1845 and 1895. Later gun emplacements have destroyed the 7" gun emplacements located at TQ9127275363 and only one of the emplacements for the 64 pdrs remains at TQ9144975282. The 9.2" emplacements are still visible as slight scaps and a projecting wall, but are probably buried intact. An ammunition store between the guns appears intact although the entrance is now blocked. (4)

<1> Victor Smith and Ron Crowdy, Thames Gateway Assesment: Gazetteer of Defence Sites (Index). SKE6445.

<2> 1946, Photograph (Photograph (Print)). SWX9556.

<3> 1998, Photograph (Photograph (Print)). SWX10227.

<4> Royal Commission on Historic Monuments in England, 1995, Sheerness: The Dockyard, Defences and Blue Town (Unpublished document). SWX6974.