Royal Service K.D.S. ship-letter sent from Copenhagen 27 July 1855 to Itzehoe, showing a clear strike of the octagonal – FRA KJÖBENHAVN – a rare use on Royal Service letters. Furhtermore, the letter is sent by an official from Schleswig-Holstein-Lauenburg Wasserbau Directorat (wax seal). This is an interesting letter, showing that an official from Altona using the Royal Service in order to mail a letter during his stay in Copenhagen, a very rare use from an Official traveling in an official capacity.