In the US I believe it is Scott Number 2137 issued in 1985. It pictured Mary McLeod Bethune, Educator.
BOOKER T. WASHINGTON
horse
In the United States it is US Scott Number 873. It was a ten cent value that was part of the Famous Americans Series. Booker T. Washington was the first black American to be honored on a U.S. postage stamp issue. His boyhood home was later pictured on a stamp as well.
Mr Courgette Washington of Cucumbersville.
The singer that was honored on a 2008 postage stamp was Frank Sinatra .Sinatra
philatelic fan
The penny black was the worlds first postage stamp in 1840.
Harriet Tubman
The first African-American woman honored on her own stamp was Harriet Tubman in 1978. Some of the letter-sorters shown on a 1973 stamp appear to black women.
The first postage stamp is called the Penny Black. It was issued by Great Britain.
Penny Black
Black