Lot 959
 
Canada, Airmail Semi-Official, 1934, Canadian Airways Ltd., "10 CENTS" surcharge inverted (CL52a), block of four with sheet margin selvage at left and bottom, bright, fresh and perfectly centered, original gum, never hinged, Extremely Fine and rare. Unitrade C$6,000 ($4,500).
Scott $4,000 for hinged
Expertization: 2009 Greene Foundation Certificate.
According to the Scott Catalogue 50 inverts were issued; according to the Unitrade Catalogue, there were 100 issued.
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| Realized $3,500 |
