1871, 1873 (c., Oct. 23) United States to Leipzig, Saxony. Blue correspondence pair, each bearing 7¢ orange vermilion (160), one tied by "Mich., Oct 23" duplex with cork cancel, red "New York, Paid All, Br. Transit, Oct 29" exchange cds for the 7¢ Closed Mail rate effective Oct. 1871 to June 1875, other tied by circle of wedges fancy cancel, red "Boston, Paid All, Direct" exchange at the 7¢ Direct Mail rate effective only August 1870 to June 1871, Very Fine pair of 7¢ Bank Note uses at the two solo German use. Estimate; $200 - 300. Est. $200-300 (Image)