1867 (May 24) Burlington Vt. to Knowlton, Canada, cover bearing 1¢ blue (63), "L" strip of five, pair and three singles, all tied by multiple strikes of "Burlington Vt. May 24" duplex with circle of thin wedges, prepaid 10¢ cross-border rate, St. Johns (5.24) transit cds; one 1¢ faulty, Very Fine, ex-Kramer, Christian. Estimate  $750 - 1,000. A SCARCE CROSS-BORDER USAGE WITH SUCH AN IMPRESSIVE 1¢ 1861 ISSUE FRANKING. Illustrated and discussed in Donald Evans, The United States 1¢ Franklin 1861-67, pg. 360, fig. 17-33. $0 (Image)