Thesaurus Term/Concept: SOUND MIRROR BUILDING
| Identifier | 140818 |
|---|---|
| Class | DEFENCE OF BRITAIN |
| Status | Preferred |
| Index? | Yes |
| Scope Note | A building associated with the early 20th century acoustic detection system. |
| Identifier | 140818 |
|---|---|
| Class | DEFENCE OF BRITAIN |
| Status | Preferred |
| Index? | Yes |
| Scope Note | A building associated with the early 20th century acoustic detection system. |