London, GB, British Library, add Roll 77720 Date:1270 -1280 Dimensions:264.5 cm Length x21 cm Width Number of Pieces:4 Type:Heraldic Roll Shelfmark:add Roll 77720 Provenance:Unknown Provenance Contents:The Dering Roll. Bibliography:Wagner, Anthony. A Catalogue of English Medieval Rolls of Arms. Aspilogia 1. Woodbridge, Suffolk: Boydell Press, 2009, 14-16.