
Maynard Dixon (American, 1875–1946)

National Institutes of Health (American, 1887-)

Victor Prouvé (French, 1858-1943)

Ralph Meriman (American, 1850-1950)

Anonymous

Laboratoires Perrochon (French, 20th Century)

Laboratoire O. Rolland (French, 20th Century)

Michael Mabry (American, 1955-)

Hubert Rogers (Canadian, 1898-1982)

Julius Klinger (Austrian, 1876 – 1942)

Imp. Romanet & Cie (French, 19th/20th century)

Henri-Gabriel Ibels (French, 1867 - 1936)

Laboratoires Pointet & Girard (French, 20th Century)

Erie Litho Co. (American, 19th/20th century)

U.S. Information Agency (American, 1953-1999)

Adolfo Hohenstein (German, 1854–1928)

Adolf Friedländer Lith. (German, 19th/20th century)

Anonymous

H. M. Rosenberg (American, 1858-1947)

Fred Taylor (English, 1875-1963)

Jean d'Ylen (French, 1886-1938)

Anonymous

Imp. Camis (French, 19th/20th century)

Charles Lubrecht (American, 19th/20th Century)