Thesaurus Term/Concept: PILLBOX (TYPE FW3/25)

Identifier 123517
Class DEFENCE OF BRITAIN
Status Preferred
Index? Yes
Scope Note A circular pillbox designed by the Engineering and Metals Company using 'Armco' corrugated iron sheets as the inner and outer skins into which concrete was poured, giving a 12in wall thickness. The design was taken up by DFW and assigned a drawing number.

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