1 / 3 silver penny black on yellow green, single franking on printed matter without address wrapper, tied by blue box cancel of 2 lines CLOPPENBURG 8 / 1" (1860), the stamp is on all sides having full to wide margins cut and in having bright colours, perfect condition, foldings in the stationery are partial broken and the address was retroactive applied, expertized Ernst Stock, certificate Hunziker and new photo expertize Stegmüller BPP (2020) : "a scarce single franking. ", Michel 3.000.-