Niger
nig-20180424-s-010
page = 1

Stamp picture
Click here for higher resolution image		First day of issue: April 24, 2018
Occasion: 2018 Winter Olympics,2018,Pyeongchang,Korea, South
Width: 38 mm
Height: 52 mm
Perforation: Imperforate
Location: Ice Hockey Volume LXX
Stamp ID = 5670

Stamp shows Nikita Gusev (On some French language stamps you might see the name spelled Goussev.)
Stamp shows Björn Krupp

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.