Switzerland, 1853, Rayon I, 20rp light blue, stone C2, Type 9 r/u, on a folded letter addressed to Monsieur Humbert l'ainé aux Pâquis à Genève. The cover is franked with 20rp for the 2nd weight class, cancelled with a  federal diamond and "LANDERON 5. Oct. 1853" postmark alongside. On the reverse arrival postmark dated October 7.