Our highlights for Auction #4 begin in an obvious place, with the spectacular block of the St. Lawrence Seaway showing the inverted centre error.
Canada #387a, 1959 5¢ St. Lawrence Seaway with inverted center block of four, with full never hinged original gum and very fine. Unusually nice without any of the fingerprints and gum bends which are frequently seen on these rare error stamps. An exceptionally rare block of this classic error, an icon of Canadian philately. Unitrade C$64,000