SARDINIA - Switzerland. 1853 cover, franked with 40c. rose (touching margin at the right) to Poschiavo/Grigioni, cancelled by diamond dotted handstamp, alongside Torino c.d.s. Reverse shows Chur transit and arrival c.d.s. Despite some minor defects very rare usage of this issue for mail sent abroad. Sassone 3; Euros37 500 (40 000 CHF). (Photo). Est. 1 500 - 2 500 CHF.