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. |