1843, 6 Rp black with vertical background lines, type II, 12 stamp of the sheet, tied by black Zurich rosette postmark, having bright colours and excellent margined extremely fine copy in perfect condition, expertized Fulpius, Grobe, Moser and photo expertize Jean Claude Marchand SBPV (2023) \"in perfect condition. Excellent visible background lines. \", Michel 1.600.- (Zumstein no. 2 S)