3 Kreuzer on green, along with 6 Kreuzer on yellow on properly franked folded letter from 5 ring "21" - BÜHL 27. Sep (1855) (additional cancellation in blue! ) to Frankfurt with railway mail and distribution cancel, cut as usual, very fine fresh colours, horizontal archive fold, with full content, decorative franking with different colours, new photo expertize Stegmueller BPP (2023) "cut as usual, perfect"