
Emil Cardinaux (Swiss, 1877–1936)

Ethel Reed (American, 1874 - 1900)

Louis Frederick Hurd (American, 1853-1904)

Henry Summer Watson (American, 1868-1933)

Henri-Gabriel Ibels (French, 1867 - 1936)

Laboratoires du docteur Roussel (French, 20th Century)

Eric Aldwinckle (Canadian, 1909-1980)

Anonymous

Eric Rohman (Swedish, 1891 - 1949)

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

William McCaffery (American, 20th Century)

Reijer Stolk (Dutch, 1896 - 1945)

Imp. Emile Lévy (French, 19th/20th century)

Rudolf Urech (Swiss, 1888 – 1951)

Charles Tichon (French, active 1882-)

Ludwig Hohlwein (German, 1874 – 1949)

Imp. Charles Lévy (French, 19th/20th century)

Iris Beatty Johnson (American, 1897-?)

Anonymous

Merck (French, 20th Century)

Joseph Binder (Austrian, 1898-1972)

Paul Bürck (German, 1878-1947)

Imp. Charles Lévy (French, 19th/20th century)