1854. 16 sk. grey-purple and 4 sk. 5.print (1858). Totally 20 sk. on excellent small STEAMSHIP-COVER from Kjøbenhavn 11.7.1862, via Sandösund 13.7. 1862 to Hønefos, Norway. Both stamps 4 beautiful margin copies. ONE OF ONLY 2 KNOWN COVERS. Cert. Nielsen [ 6,7x ] [ ✉ ]