David Feldman's 21st Rarities of the World Auction - June 13, 2018

Rarities of the World – 92 – COMBINATION FRANKING SWITZERLAND/ SPAIN 40077 F 43+Spain 1868 Double-weight folded cover from Sumiswald to Madrid franked with a pair of Sitting Helvetia 50c, misfortunately letter was submitted to direct exchange and thus transited through Barcelona, there boxed FRANQUEO INSUFICIENTE was applied together with Spanish 10c adhesive tied ESTRANGERO/ BARCELONA, rare mixed franking Only three Spain/Sitting Helvetia combination covers recorded Provenance: Grand, Schäfer Estimate: €3’000 - €4’000 Switzerland