
Anonymous

André Pécoud (French, 1880-1951)

Courier Litho. Co. (American, 19th/20th Century)

Laboratoire du Néobiol (French, 20th Century)

Leo Visser (Dutch, 1880-1950)

Hans Beat Wieland (Swiss, 1867–1945)

Anonymous

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

Lucian Bernhard (German, 1883-1972)

National Institutes of Health (American, 1887-)

Anonymous

Bureau of the Census (American, 1902 - )

Anonymous

Théophile Alexandre Steinlen (Swiss, 1859-1923)

Antoni Piotrowski (Polish, 1853–1924)

Leonetto Cappiello (Italian, 1875-1942)

Imp. H. Chachoin (French, 19th/20th century)

Anonymous

Anonymous

Anonymous

J. Hirt (American, 20th Century)

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