Sao Tome & Principe
saj-20180519-s-004
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Stamp picture
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First day of issue: May 19, 2018
Width: 45 mm
Height: 31 mm
Perforation: Perforated 13.50 x 13.25
Location: Ice Hockey Volume LXXVIII
Stamp ID = 5585

Stamp 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.

Sao Tome and Principe (1975-)
Stamp-issuing status: active; Population: 147,865 (1997 estimate). The Portuguese colony of St. Thomas and Prince became the independent Democratic Republic of Sao Tome and Principe on July 12, 1975. It now issues large numbers of topically oriented stamps primarily intended for stamp collectors.