Sweden. Foreign-related cover. Germany. Free letter sent from STOCKHOLM FR BR 14.6.1831 to Lübeck. Cancellations FRCO GREIFSWALD (P: +1500), KSNPC I GREIFSWALD D. 18 JUNI (P: 3000) and KS&NPC HAMBURG 20.JUN.31. EARLIEST RECORDED mail to the Free and Hanseatic City of Lübeck (1806–1937) according to the listing by Sören Andersson. Superb.