1850-1865 U.S. - Canada Cross Border Mail, group of 16 covers including 1850 from Halifax carried by Cunard America to New York, 1855 use with #9 used with #11 strip of three to New Brunswick; 1859 use with #24 used with #26 (3) perfs trimmed to Canada; and 1852 Liverpool to Montreal via New York at correct prepaid "1/2" 1s2d rate; some faults, F.-V.F. Estimate  $400 - 600. $0 (Image)