Rudolf Otto
1929 · Fine
€35
Guillaume Groen van Prinsterer
1903 · Fine · NL
€30
Peter Kropotkin
1910 · Fine
€50
Inge, William Ralph
1926 · Fine
€50
Morris Raphael Cohen
1935 · Fine
€35
Nicolass Muller
1915 · Fine · NL
€35
Maximilien Marie
1925 · Fine
€35
Eduard Strasburger
1924 · Fine
€40
F. Matthias Alexander
1935 · Fine
€35
John Dewey
1910 · Fine
€30
Ernst Heinrich Philipp August Haeckel
1900 · Fine
€30
Ika A. Thomése
1935 · Fine · NL
€35
Jan Frederik Beerens
1910 · Fine · NL
€50
Klaas Johan Pen
1935 · Fine · NL
€35
Jan van Leeuwen
1935 · Fine · NL
€45
Frederic William Farrar
1905 · Fine
€35
Rudolf Steiner
1932 · Fine
€40
Erwin Madelung
1935 · Fine
€40
Carl David Tolmé Runge
1916 · Fine
€50
Henri Poincaré
1910 · Fine
€30
Walter E. Thirring
1906 · Fine
€40
Arthur van Schendel
1921 · Fine · NL
€35
David Hume
1903 · Fine
€50
Antoni Christiaan Winand Staring
1900 · Fine · NL
€30
Alfred North Whitehead
1930 · Fine
€40
James Martineau
1923 · Fine
€40
Abraham Kuyper
1911 · Fine · NL
€30
Robert Graves
1921 · Fine
€45
Jean-Jacques Rousseau
1927 · Fine
€30
Karl Pearson
1934 · Fine
€30
Antonio Machado
1935 · Fine
€30
H. Newell Martin
1903 · Fine
€40
J. Arthur Thomson
1909 · Fine
€45
Bernard Henri Vos
1935 · Fine · NL
€40
Carlton C. Curtis
1907 · Fine
€50
G. H. Hardy, J. G. Leathem
1916 · Fine
€35
Frederick Soddy
1935 · Fine
€30
George Bernard Shaw
1927 · Fine
€30
Mary Greer Conklin
1923 · Fine
€40
Leonard Anthony Springer
1915 · Fine · NL
€30
Jesse Feiring Williams
1924 · Fine
€35
Eduard Strasburger
1935 · Fine
€45
Augustine of Hippo, Philip Schaff
1933 · Fine
€30
Gerard Manley Hopkins
1920 · Fine
€45
H. G. Wells
1919 · Fine
€35
Hilaire Belloc
1929 · Fine
€35
Alfred Russel Wallace
1935 · Fine
€35
C. Snouck Hurgronje
1935 · Fine · NL
€30
Willem Jan Maria Westerwoudt
1915 · Fine · NL
€40
Henry Gray F.R.S., Henry Vandyke Carter
1915 · Fine
€50
Thompson, D'Arcy Wentworth
1931 · Fine
€35
W. L. van Helten
1935 · Fine · NL
€35
Henry Sinclair Hall, Samuel R. Knight
1904 · Fine
€30
Romain Rolland
1918 · Fine
€50
H. Newell Martin, Ernest Gale Martin
1904 · Fine
€40
Alexis Thomson
1912 · Fine
€30
Charles David Hodgman
1916 · Fine
€45
George Washington Carey, Inez E. Perry
1914 · Fine
€30
Pieter Joseph Cruse
1911 · Fine · NL
€30
George M. Gould
1900 · Fine
€35