( 1b) General reference
Place Names of Roman Britain 1979 170-2 310 (A L F Rivet & C Smith)
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( 1a) Aerial photograph
(RAF/F21/540/1764 0043-44 2.1.56) & APs (RAF/F22/540/1764 0126-27 2.1.56)
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( 2) RCHME: Roman Military North Field Notebook IV
Page(s)88-90
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