
Hubert Saget (German , 1890-1949)

Fritz Rumpf (German, 1856-1927)

Fritz Rumpf (German, 1856-1927)

Ludwig Hohlwein (German, 1874 – 1949)

Laboratoires biochimiques de l'est (French, 20th Century)

Anonymous

Anonymous

Sidney Riesenberg (American, 1885-1971)

Tom Purvis (English, 1888-1959)

Etablissements Minot (French, 19th/20th century)

Laboratoires Drouet & Plet (French, 20th Century)

Anonymous

Anonymous

Anonymous