1. Philatelic 61 Reference (shelfmark): Philatelic 61 Title: Seymour Collection Scope & Content: Collection of Airmails associated with the development and operation of the British Comet aircraft formed by the philatelist Kenneth Aubrey Seymour (1914-2003). Collection Area: Philatelic Collections Languages: English Date Range: 1949-1960 Extent: 18 Volumes; 7 Boxes