
Charles-Lucien Léandre (French, 1862-1934)

Laboratoires G. Reaubourg (French, 20th Century)

Eric Rohman (Swedish, 1891 - 1949)

NASA (American, 1958 -)

Anonymous

Ritchey Lith. Corp. (American, 19th/20th Century)

Anonymous

Alfred Offner (Austrian, 1879–1937)

Anonymous

Anonymous

Maurice Zimmermann (Swiss, 19th/20th century)

Karl Wagner (German, 1839 - 1923)

Anonymous

H.C. Miner Litho. Co. (American, 1896-1935)

Theo Nieuwenhuis (Dutch, 1866-1951)

Laboratoires Longuet (French, 20th Century)

Albert Guillaume (French, 1873 – 1942)

Lester Beall (American, 1903-1969)

Frederic Hugo d’Alési (French, 1849-1906)

Anonymous

Robert Wildhack (American, 1881 - 1940)