Northumberland Bothal, Northumberland D type with entrance passage. S0013378 by Colin|Updated 25th April 2021 This pillbox used to have a corrugated iron roof structure above as camouflage. Pic Alan Fenwick on flickr
Pillbox (Variant): S0007992 This variant pillbox is circular with three large loopholes. It has a sunken entrance with two staple steps fitted down the shaft. […]