Worldwide Air Post stamps and postal history, Zeppelin Flight items, philatelic rarities of the World. Part 2

Canada - Modern Errors

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Start price: $200

Buyer's premium:

1979, definitive issue, Queen Elizabeth II, (17c) green, a single with black color omitted and horizontal perforation shifted to the bottom, full OG, NH, VF and very scarce, a common stamp is added for comparison, C.v. $750, Unitrade C.v.$1,250, Est. $300-$400, Sc. #789d