Thesaurus Term/Concept: COFFIN
| Identifier | 123430 |
|---|---|
| Class | DEFENCE OF BRITAIN |
| Status | Preferred |
| Index? | Yes |
| Scope Note | Rectangular slabs of concrete with a sloping top usually with sides of 5 feet by 3 feet and 3 feet high which when placed in rows were intended to form a substantial barrier to enemy armoured divisions in the event of invasion. |