1. Philatelic 20/5/3 Reference (shelfmark): Philatelic 20/5/3 Title: Ewen Collection: Dumbarton and Balloch Joint Line Scope & Content: Railway letter stamps, covers and related material, provenance records and notes relating to the Dumbarton and Balloch Joint Line. Collection Area: Philatelic Collections Languages: English Date Range: 1891-1912 Extent: Section within volume.