U.S. #2091 and Canada #1015 32c, St. Lawrence Seaway Joint Issues on FDC, with dual FDOI ccls, both XF, each tied to FDC with their country's own FDOI ccls. Both tied to cover with Canada Post official gray green cachet of Queen Elizabeth at the official opening ceremony of the St. Lawrence Seaway; unaddressed Cat($20) (Image)

$20