1850, 4 Rp black / dark brownish red, horizontal background lines, type I, tied by red Zurich rosette postmark, the rather fresh stamp with brilliant colours is clean and slightly used, left in the margin repaired and copied, reverse thin otherwise four sides normal to good margined and flawless, hardly visible background lines, expertized Buehler and photo expertize Marchand SBPV, Michel 19.000.- - a rare stamp!