Czech Republic
czr-20150429-z-001
page = 1
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Width: 210 mm
Height: 150 mm
Location: Oversize album #9
Stamp ID = 2549
The Czech Republic Post Office calls this a "souvenir sheet". It contains the stamp (a target="_blank" href="/cgi-bin/hockey_stamp.pl?stamp=/stamps/scans/Czech%20Republic/czr-20150429-s-001-01.jpg&number=33">czr-20150429-s-001) and the First Day of Issue cancel (a target="_blank" href="/cgi-bin/hockey_stamp.pl?stamp=/stamps/scans/Czech%20Republic/czr-20150429-c-001-01.jpg&number=33">czr-20150429-c-001) along with the name of the stamp designer and the method of printing.
From Linn's "Stamp Issuing Entities Of The World" page.
Czech Republic (1993- )
Stamp-issuing status: active; Population: 10,318,958. A republic in central Europe, comprising the Czech portion of the former Czechoslovakia, corresponding to the historic Bohemia.