1869 (Jun. 14) Washington D.C. to Basel, Switzerland, fresh cover bearing 1861, 10¢ green, single and pair with deep rich color, tied by "Washington D.C. Jun 14" duplex with quartered corks for the 30¢ Prussian Closed Mail rate, red "N.York '7 Paid' Jun 17" exchange cds, carried by NGL Line New York from New York Jun. 17 to Bremen arriving Jun. 28, blue "Aachen France 30/6" framed transit and matching "Franco Pruess./resp.Vereinsl.Ausg.Gr" framed h.s. to show this letter was prepaid to Swiss border only, Baden (6.5) and Basel (6.5) backstamps, red crayon "10" centimes (3kr.) due rating; right 10¢ placed over edge, Very Fine, A choice use at the 30¢ Prussian Closed Mail rate prepaid to Swiss border only. Scott No. 68  Estimate $300 - 400. $0 (Image)