1843, 4 Rp black with vertical background lines, type V, tied by red Zurich rosette postmark, having bright colours and excellent margined extremely fine copy in perfect condition, very rare stamp, expertized Schlesinger, Locher and photo expertize Jean Claude Marchand SBPV (2023) \"in perfect condition. Excellent visible background lines. \", Michel 14.000.- (Zumstein no. 1 S)