Lot 447 Canada #458 var 1967 5c Blue Centennial with Major Pre-Printing Foldover, a mint never hinged single from the lower left corner of the sheet, which had a large part of its corner folded over after the printing process and before the perforating process, resulting in a dramatic error showing part of the plate inscription and cutting lines at bottom. Pen number in selvedge, still very fine and scarce. Estimate C$200.