Canada
can-20171024-z-003
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Width: 190 mm
Height: 147 mm
Location: Oversize album #11
Stamp ID = 5179
Canada Post sold FDC's for the three Toronto Maple Leaf stamps (can-20171024-s-001, can-20171024-s-002 and can-20171024-s-003) as one item. This card was packaged with the 3 FDC's and then wrapped in clear plastic.
From Linn's "Stamp Issuing Entities Of The World" page
Canada (1851-)
Stamp-issuing status: active; Population: 29,123,194. An independent state within the British Commonwealth, occupying the northern part of North America.