Sweden. Foreign-related cover. Portugal. Letter dated "Stockholm 21 July 1837" conveyed by the forwarding agent T. W. SMITH & CO to LONDON 5.AUG.1837. Further transportation via Falmouth and by "Delight packet" to LISBOA 13.8. Prepaid 3-fold postage "7/6" (sh/d) by the agent in London. Postage due notation "630" (reis).