Switzerland, 1851, 5rp light blue & red "Rayon I", without frame around cross. Large margins all around, very fresh, tied by Zürich rosette cancel on an 1851 folded letter sheet to Winterthur, Very Fine and choice; with 2004 Marchand certificate. Zumstein No. 17 II. Scott No. 10  Estimate $600 - 800. $0 (Image)