1859, Stampless registered letter from POLOUSTROV 14/5 1859 to Ronne via TAUROGGEN , TILSIT 28/6 with canc. Franco Copenhagen , m/s /2 and 2 Sgr. prussian tax (2.rayon), sent on ship-route St.Petersburg-Riga-Tilsit-Königsberg-Ronne-Greifswald