3 Kr. On green, along with 6 Kr. On yellow on properly franked folded letter from 5 ring \"21\" - hill 5 oct (1855) (additional cancellation in blue! ) to Frankfurt with railway mail and distribution cancel, the 3 Kr. Stamp lower right touched, otherwise full to huge margins, left even with part of the neighbour, the 6 Kr. In the as usual cut, document on the reverse side with age traces, with full content, decorative franking with different colours, new photo expertize Stegmueller BPP (2023)