Summarised from report:

Two Battery Command posts were constructed at the Citadel Battery, the first was located at the western end of the north scarp. This was demolished and replaced by another Command post between 1908 and 1909, located to the north of the battery, behind the gun emplacements. The passage of the first command post survives, commencing immediately west of the accumulator recess for emplacement no I. It is some 9m long, 1.7m wide, its sides revetted in concrete. The passage leads to two small concrete cells let into the glacis, now much obscured by rubble. The first, measuring 3.2m by 2.4m is the site of the Battery Command Post itself – probably the telephone room on the lower level; the remains of a doorway, now broken, survive in the north wall. The second cell, measuring approximately 3.0m by 4.0, is simply a revetment wall for the stair leading to the upper floor. (1)

<1> RCHME, 2000, The Western Heights, Dover, Kent. Report No 8: The Citadel Battery: An early 20th-century coastal battery (Unpublished document). SKE17504.