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CIRCULAR REDOUBT |
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| SN | A large circular defence work surrounded by a brick revetted ditch and sunken below a glacis. Usually built out of brick with the embrasures lined with granite blocks. Armed with ten or elven guns. Early 19th century as part of coastline defence. |
| CL |
DEFENCE |
| BT | COASTAL DEFENCE SITE |
| RT |
REDOUBT
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