This feature is recorded in the English Heritage report on the Second World War Stop Line in the Hoo Peninsula, part of the wider Hoo Peninsula study. The report states: "Second World War circular Type 25 pillbox. The pillbox is located on Deangate Ridge to the south of Rough Shaw, facing south overlooking Lodge Hill Ordnance Depot. It was protected by a roughly circular barbed wire enclosure about 40m in diameter. The pillbox appeared as a standing structure on photographs taken in 1944 and 1970 but had been removed by 1973 although it is possible that sub-surface remains survive." (1)

<1> historic england, 2014, Hoo Peninsula Landscape Project: Second World War Stop Line: Hoo St Werburgh to Higham Marshes. Research Report 9-2014. (Bibliographic reference). SKE31599.