Worldwide Air Post stamps and postal history, Zeppelin Flight items, philatelic rarities of the World. Part 2
Lot 718:
1987, Calgary Winter Olympic Games, 42c multicolored, vertical bottom sheet margin pair with strong shift of horizontal perforation and imperforated at bottom, full OG, NH, VF and unrecorded error, Est. $150-$200 , Sc. #1131 var
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