
Jean Veber (French, 1864–1928)

Emil Cardinaux (Swiss, 1877–1936)

Lith. F. Appel (French, 19th/20th century)

Laboratoire des gouttes Arg-Eph (French, 20th Century)

Laboratoire des gouttes Arg-Eph (French, 20th Century)

Laboratoires Cantin (French, 20th Century)

Laboratoires Cantin (French, 20th Century)

Hans Rudi Erdt (German, 1883 – 1918)

Anonymous

Otto Plattner (Swiss, 1886-1951)

Walther Koch (German, 1875–1915)

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

Pal (Jean de Paleologue) (Romanian, 1855 - 1942)

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

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

Imp. F. Champenois (French, 19th/20th century)

Imp. F. Champenois (French, 19th/20th century)