Domestic letter with perfin “N.B.C.” in the stamp. The letter is franked correctly as printed matter with 4 øre, which was the rate for domestic printed matters from January 1st 1875 to June 30th 1919. The stamp is cancelled January 10th 1913 with a whole letter cancellation machine Tp. K. 7H. B.B.B. which was used as a spare stamp after 1912.