Morris Raphael Cohen
1935 · Fine
€35
Theodore Shennan
1912 · Fine
€45
E. B. Jamieson
1914 · Fine
€40
Peter Lund Simmonds, Simmonds P. L. (Peter Lund)
1923 · Fine
€50
W. L. van Helten
1935 · Fine · NL
€35
Ernest Thompson Seton
1929 · Fine
€35
F. Matthias Alexander
1935 · Fine
€35
James Martineau
1923 · Fine
€40
Ika A. Thomése
1935 · Fine · NL
€35
Mary Greer Conklin
1923 · Fine
€40
Thompson, D'Arcy Wentworth
1931 · Fine
€35
John Dewey
1910 · Fine
€30
L. A. Waterbury
1913 · Fine
€45
G. H. Hardy, J. G. Leathem
1916 · Fine
€35
George M. Gould
1900 · Fine
€35
Nicolass Muller
1915 · Fine · NL
€35
Jesse Feiring Williams
1924 · Fine
€35
Austin M. Patterson
1935 · Fine
€35
Henry Sinclair Hall, Samuel R. Knight
1904 · Fine
€30
Arthur van Schendel
1921 · Fine · NL
€35
Steven S. Zumdahl
1915 · Fine
€45
Karl Pearson
1934 · Fine
€30
Smithsonian Institution
1935 · Fine
€45
Alfred Russel Wallace
1935 · Fine
€35
Carl David Tolmé Runge
1916 · Fine
€50
Hilaire Belloc
1929 · Fine
€35
J. Arthur Thomson
1909 · Fine
€45
Eduard Strasburger
1935 · Fine
€45
Mādhavakara.
1924 · Fine
€30
Abraham Kuyper
1911 · Fine · NL
€30
H. Newell Martin, Ernest Gale Martin
1904 · Fine
€40
Robert Louis Stevenson
1921 · Fine
€30
Willem Jan Maria Westerwoudt
1915 · Fine · NL
€40
Erwin Madelung
1935 · Fine
€40
Lewis Beesly, Thomas Baillie Johnston
1928 · Fine
€50
David Hume
1903 · Fine
€50
Ernst Heinrich Philipp August Haeckel
1900 · Fine
€30
James Law, James Law - undifferentiated
1904 · Fine
€35
Robert W. Chambers
1925 · Fine
€45
Gerard Manley Hopkins
1920 · Fine
€45
Jan van Leeuwen
1935 · Fine · NL
€45
Carlton C. Curtis
1907 · Fine
€50
Rudolf Otto
1929 · Fine
€35
Henry Gray F.R.S., Henry Vandyke Carter
1915 · Fine
€50
H. Newell Martin
1903 · Fine
€40
George Bernard Shaw
1927 · Fine
€30
Guillaume Groen van Prinsterer
1903 · Fine · NL
€30
Alexis Thomson
1912 · Fine
€30
Gilbert Keith Chesterton
1902 · Fine
€30
Alfred North Whitehead
1930 · Fine
€40
Antoni Christiaan Winand Staring
1900 · Fine · NL
€30
George Washington Carey, Inez E. Perry
1914 · Fine
€30
Rudyard Kipling
1919 · Fine
€35
Rudolf Steiner
1932 · Fine
€40
Inge, William Ralph
1926 · Fine
€50
H. G. Wells
1919 · Fine
€35
Frederic William Farrar
1905 · Fine
€35
Mary Shelley
1935 · Fine
€40
Woodrow Wilson
1922 · Fine
€45
C. Snouck Hurgronje
1935 · Fine · NL
€30