Sweden. Foreign-related cover. Great Britain. Six letters sent from to Uddevalla 1851–1853, after the Anglo-Swedish postal agreement. One early (25.FE.1851) usage with postage due 1 Rd 32 sk, three unpaid letters (7 / 21.OC / 4.MR.1851) with postage due 40 sk, and two unpaid letters (7.OC.1852 / HULL 28.JU.1853) with postage due 37 sk 4 r. Nice lot. (6).