( 1) Ordnance Survey Map (Scale / Date)
OS 6" 1963
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( 2) Devonshire Association reports and transactions
12, 1880 Page(s)365-74
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( 3) Devonshire Association reports and transactions
69, 1937 Page(s)75-6
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(4) Scheduled Monument Notification
Schedule amendment 19-Mar-2001
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