1. Seal CIX.88 Reference (shelfmark): Seal CIX.88 Title: Scope & Content: Westminster Abbey "ad causas tantum," 40 Edw. III. [1366-67]. Peter, Abbot of Abingdon: Gem seal: 1389. Collection Area: Western Manuscripts Languages: English Date Range: 1366-1389 Extent: 1 item