Guinea
gui-20170910-s-007
page = 1

Stamp picture
Click here for higher resolution image
First day of issue: September 10, 2017
Occasion: 2017 Men's World Ice Hockey Championships,2017,Cologne & Paris,Germany & France
Width: 33 mm
Height: 49 mm
Perforation: Imperforate
Location: Ice Hockey Volume LV
Stamp ID = 5217

Stamp shows Nikita Kucherov (On some French language stamps you might see the name spelled Koutcherov.)

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

Guinea (1959-)
Stamp-issuing status: active; Population: 7,405,375. Republic in West Africa.