United States
usa-20180607-z-001
page = 1

Stamp picture
Click here for higher resolution image
First day of issue: June 07, 2018
Width: 305 mm
Height: 406 mm
Location: 14 x 17 Portfolio #11
Stamp ID = 5659

NHL Championship matted cachet with art souvenir sold by the United States Post Office. Contains one copy of commemorative cover usa-20180607-r-001.

Miscellaneous shows Nicklas Båckström
Miscellaneous shows John Carlson
Miscellaneous shows Lars Eller
Miscellaneous shows Braden Holtby
Miscellaneous shows Michal Kempný
Miscellaneous shows Evgeny Kuznetsov
Miscellaneous shows Matt Niskanen
Miscellaneous shows Dmitry Orlov
Miscellaneous shows T.J. Oshie
Miscellaneous shows Alexander Ovechkin (On some French language stamps you might see the name spelled Aleksandr Ovetchkine.)
Miscellaneous shows Jakub Vrána
Miscellaneous shows Tom Wilson

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

United States of America (1847-)
Stamp-issuing status: active; Population: 248,709,873 (1990). Republic occupying the central portion of North America, along with Alaska, Hawaii and a large number of island possessions in the Caribbean Sea and the Pacific Ocean.