Sweden. Foreign-related cover. France. Official letter regarding cholera outbreak in Reval, sent from STOCKHOLM FR. BR. 20.8.1831 via GREIFSWALD 27.AUG to Nantes. On account of cholera the letter is perforated and disinfected by fumigation. Cancellations FRANCO STRALSUND, PRUSSE PAR FORBACH, CPR5, 13 and 7.SEP.1831. Additional postage mark "d" indicates overweight. Postage due notation "35" (dec). Superb and scarce. Ex. Kihlströms 1994 (5800 kr).