
Ludwig Lutz Ehrenberger (Austrian, 1878-1950)

Julius Klinger (Austrian, 1876 – 1942)

National Institutes of Health (American, 1887-)

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

Anonymous

U.S. Printing Co. (American, 19th/20th Century)

René Vincent (French, 1879–1936)

Strobridge & Co. Lith. (American, 1847 -)

Paul Bürck (German, 1878-1947)

Anonymous

Stuart Silver (American, 20th Century)

Nicolaas van de Vecht (Dutch, 1886-1941)

Frank Wedekind (German, 1864-1918)

Laboratoires pharmaceutiques Corbière (French, 20th Century)