1. Seal CLXVIII.146 Reference (shelfmark): Seal CLXVIII.146 Title: Scope & Content: John Mansel, Treasurer of York, not, as Douët d'Arcq says, of Warwick (see Berger, op. cit., p. 490), John Mansel, Treasurer of York Minster: Seal, with counterseal: 1259. Collection Area: Western Manuscripts Languages: English Date Range: 20th century Extent: 1 item