Niger
nig-20180424-w-004
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Stamp picture
Click here for higher resolution image
Click here to see FDC's		First day of issue: April 24, 2018
Occasion: 2018 Winter Olympics,2018,Pyeongchang,Korea, South
Width: 155 mm
Height: 137 mm
Perforation: Imperforate
Location: Ice Hockey Volume LXX
Stamp ID = 5676

Souvenir sheet shows Jonathon Blum
Souvenir sheet shows Kirill Kaprizov
Souvenir sheet shows Ilya Kovalchuk (On some French language stamps you might see the name spelled Kovaltchouk.)

From Linn's "Stamp Issuing Entities Of The World" page.

Niger (1921-45, 1959-)
Stamp-issuing status: active; Population: 9,388,859 (1997). A republic in northern Africa, directly north of Nigeria.