648i / ii Scott - 8c, Mercury and Winged Horses, VF, MNHOG, red streak variety (through horses on right stamps and under UPU Square on bottom right). Further, all "Canada 8" are doubled. The red streaks appear on the 3rd pane on stamps #32 and 37 with 37 having the double streak. The stamps were printed 4 panes at a time. There are no streaking varieties on the 4th pane as per K. Bileski notes.