cover 1870 (22 Oct.) envelope addressed to near Nantua, bearing 1867-80 3d. plate 6, cancelled by "CHARING CROSS" duplex, affixed over the corner of a France 'Laureated' 20c., cancelled by part "ANGL./AMB. CALAIS" c.d.s., with additional strike at left and red "PD" in oval, "IZERNORE" c.d.s. on reverse; some faults but attractive and an intriguing item. Photo