Steinitz
Cuba
March 15, 1976
Grandmasters
140.
Steinitz
Comores
February 19, 1979
175.
Philidor, Anderssen, Steinitz
Central Africa
January 15, 1983
259.
Steinitz
Madagascar
July 20, 1984
60th Anniversary of FIDE (1924-84)
336.
Steinitz
Kampuchea
August 28, 1986
Stockholmia
393.
Steinitz
Mongolia
November 20, 1986
World Champions
403.
Steinitz
Game: Steinitz-Bardeleben
Guinea-Bissau
June 1, 1988
Finlandia 88 - International Stamp Exhibition, Helsinki
429.
Steinitz
Laos
November 22, 1988
460.
Steinitz