
Paul Balluriau (French, 1860–1917)

Laboratoires Grysa (French, 20th Century)

Anonymous

Max Buri (Swiss, 1868 - 1915)

Laboratoire de l'Ozol (French, 20th Century)

Ernest Haskell (American, 1876-1925)

Edward Penfield (American, 1866 - 1925)

Joseph Gould (American, 1880 - 1935)

Paul Scheurich (German, 1883-1945)

Laboratoires Albert Rolland (French, 20th Century)

Anonymous

Anonymous

Anonymous

Othar Holmboe (Norwegian, 1868-1928)

Russell, Morgan & Co. (American, 19th/20th century)

Laboratoires Fluxine (French, 20th Century)

Léon-Victor Solon (French, 1872-1957)