2S stationery envelope sent from Copenhagen to Pronsdorf, Segeberg on 26 April (1866 ?) uprated with 4 sk. Crown-Scepter-Sword 1864-issue tied by numeral “1” Copenhagen alongside blue CDS “KJØBENHAVN KB 26/4 11-12”. Rate to Northern Germany at favored 6 sk. rate for first letter rate 1.8.1865.-.31.12.1874. Only three 2 sk. envelopes uprated with 1864-issue recorded to a foreign destination according to Karsten Jensen.