Northumberland EXTENDED DEFENCE OFFICERS POST: S0013263 by Colin|Updated 4th October 2025 Pics from March 2025 Pictures from 2020 Loopholes added digitally!
PILLBOX: S0002877, Warkworth. Rectangular pillbox, disguised with stone facing to front and sides and concrete sandbags to rear.
Bothal, Northumberland D type with entrance passage. S0013378 This pillbox used to have a corrugated iron roof structure above as camouflage.