Sweden. Foreign-related cover. Portugal. Prepaid letter dated "Kongl. Spanska Vice-Consulatet Stockholm d. 20 April 1872", sent via Stralsund, in German closed mail to Madrid and via Baajoz to Lisbon. Prepaid postage 63 öre. Cancellations FRANCO, P.D., FRANCA and LISBOA 28.4.1872. Superb and scarce. Ex. Nilsson.