References regarding the relation of the site to other defence sites. (1-7).

Built on the eastern half of Indented Line No.2 in 1899, although proposed in 1824, four concrete gun emplacements for 12-pr. QF guns, with underlying magazines. The eastern two were still in use by 1940 and had added brick gunhouses and shelters. All the guns have gun holdfasts 1.2m in diameter, and cartridge recessess in the parapet along the northern side of the walkway, which runs along the southern edge of the emplacements. Below the emplacements are rooms marked as war shelters on a plan dating to 1923, with store rooms and shelters projecting southwards. The western two have collapsed but the others are intact.(8)

Albemarle Battery located at TQ 913 755 on the northern front of Sheerness defences. The battery was operational by 1914 at the latest and mounted four 12-pounder guns. (9-10)

Albemarle Battery survives in complete condition. The emplacements and battery observation post are in very good condition and over four ancillary buildings and structures remain. Coastal artillery searchlights survive to the east and west. (4)

Historic England archive material (11)

<1> Sheerness Defences, Garrison Point Fort and the Indented Lines/ink survey (Graphic material). SKE6431.

<2> Sheerness Defences, Garrison Point Fort and the Indented Lines/overlay (Graphic material). SKE6432.

<3> Sheerness Defences, the Indented Lines (Bibliographic reference). SKE6439.

<4> RCHME: Sheerness Defences, Kent (Collection). SKE6533.

<5> Kent County Council, 1999, Survey of Kent post-1500 defence sites (Index). SWX11828.

<6> 1947, Photograph (Photograph (Print)). SWX9810.

<7> 1946, Photograph (Photograph (Print)). SWX9556.

<8> Royal Commission on Historic Monuments in England, 1995, Sheerness: The Dockyard, Defences and Blue Town (Unpublished document). SWX6974.

<9> Dobinson, C., 2000, Twentieth century fortifications in England. Volume 6.1. Coast Artillery, 1900-1956 (Monograph). SWX23710.

<10> Twentieth century fortifications in England. Volume 6.2. Coast Artillery, 1900-1956 (Unspecified Type). SWX20703.

<11> Historic England, Archive material associated with the Sheerness Lines (Archive). SKE56321.