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SEARCHLIGHT BATTERY |
|
| SN | A site in which one or more searchlights were positioned to locate enemy aircraft or surface vessels for the benefit of batteries and night fighter aircraft. |
| CL |
MILITARY DEFENCE AND FORTIFICATION |
| BT | ANTI AIRCRAFT DEFENCE SITE |
| NT |
BATTERY OBSERVATION POST
SEARCHLIGHT EMPLACEMENT |
| RT |
BATTERY ENGINE HOUSE
LYON LIGHT EMPLACEMENT
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