Switzerland 1843 Canton of Zurich 6 Rp black numeral design with horizontal red underprint (No. 2W, Type 3), single on white envelope addressed to Mr. Mayor Zuppinger in Eichthal,  tied by a rich red Zurich rosette cancel (AW No. 1) with matching red dispatch datestamp “Zurich 20 Nov. 1847.”
The stamp, position 23 in the 100-stamp sheet, displays vivid colors and clearly visible underprint lines, full to over-margined on all sides, in flawless, unrestored condition.
Signed Hunziker. Expertized and certified authentic by BPV ASEP (Certificate No. 04789, Hans P. Renggli, 1990).

Estimated value (certified, 2025): SG 2S catalog £1,090; similar certified covers with red rosette cancel estimate $1,500–$2,000.