Lot 1810 oSwitzerland, Zürich, 1843, 4rp black, vertical underprint. Neat red rosette cancel, large well balanced margins all around, strong color and underprint, Extremely Fine and choice, a gorgeous and sound example of this rare Classic Swiss Rarity; with 2010 von der Weid certificate. Scott No. 1L1.
Zumstein No. 1S SFr 20,000 ($22,660).