Pillbox Study Group is the club interested in British pillboxes and anti-invasion defences.
According to PR-model, pillbox-study-group.org.uk is ranked 160,871st in multilingual Wikipedia, in particular this website is ranked 110,606th in English Wikipedia.
The website is placed before wollongong2022.com.au and after armscollectors.com in the BestRef global ranking of the most important sources of Wikipedia.