1. Shelley Coll 2_15 Reference (shelfmark): Shelley Coll 2_15 Title: The Spanish Civil War: The International Brigades (Illegal use of stamps) Scope & Content: Cover postmarked 7 May 1937. Madrid to Amsterdam via Valencia and Barcelona. Collection Area: Philatelic Collections Languages: English Date Range: 7 May 1937 Extent: 1 Page, 1 Item