United States 795
According to Jean-Pierre
Mangin, Guide Mondial des Timbres Erronés, p. 219, the territory
labled "Territory Southwest of the Ohio" should properly
be "Territory South of the Ohio River."
The stamp design is based on "The Northwestern Territory and the
Territory Southwest of the Ohio River" in Foster's Forty Maps
Illustrating United States History, published in Topeka, Kansas in
1905. The map in the copy of the book I checked identifies the area as
the "Terr. Southwest of the Ohio," so the stamp is a correct
representation of this map and not an error.