Great Britain 1865 Liverpool to Eckernförde Schleswig Folded 3x3d Cover

Folded cover, franked with pair and single 3d (S.G. 26), tied by Liverpool 466 duplex (9 October), to Eckernförde, Schleswig, endorsed "via Belgium", circular "P.D." in red, neatly-struck blue "AUS ENGLAND PER AACHEN / FRANCO" double-circle, backstamped with London transit, light filing folds, a most attractive cover and scarce franking, sent a year after the Treaty of Vienna ceded the Danish Duchies of Schleswig, Holstein, and Saxe-Lauenburg to Prussia and Austria.