Alfred Russel Wallace
1935 · Fine
€35
Abraham Kuyper
1911 · Fine · NL
€30
Thompson, D'Arcy Wentworth
1931 · Fine
€35
James Martineau
1923 · Fine
€40
Eduard Strasburger
1935 · Fine
€45
Ernst Heinrich Philipp August Haeckel
1900 · Fine
€30
Nicolass Muller
1915 · Fine · NL
€35
Carlton C. Curtis
1907 · Fine
€50
F. Matthias Alexander
1935 · Fine
€35
Willem Jan Maria Westerwoudt
1915 · Fine · NL
€40
Guillaume Groen van Prinsterer
1903 · Fine · NL
€30
George Sydenham Clarke
1910 · Fine
€30
H. Newell Martin
1903 · Fine
€40
Ernest Thompson Seton
1929 · Fine
€35
J. Arthur Thomson
1909 · Fine
€45
H. G. Wells
1919 · Fine
€35
Jean-Jacques Rousseau
1927 · Fine
€30
Mortimer Menpes, Dorothy Menpes
1901 · Fine
€40
Maurice Henry Hewlett
1926 · Fine
€45
Ika A. Thomése
1935 · Fine · NL
€35
Arthur van Schendel
1921 · Fine · NL
€35
Antoni Christiaan Winand Staring
1900 · Fine · NL
€30
Eduard Strasburger
1924 · Fine
€40
May Sinclair
1935 · Fine
€30
Peter Kropotkin
1910 · Fine
€50
H. Newell Martin, Ernest Gale Martin
1904 · Fine
€40
Rudyard Kipling
1919 · Fine
€35
Hilaire Belloc
1929 · Fine
€35
Alfred North Whitehead
1930 · Fine
€40
Romain Rolland
1918 · Fine
€50
Peter Lund Simmonds, Simmonds P. L. (Peter Lund)
1923 · Fine
€50
Annie L. Burton
1910 · Fine
€30
Richard Francis Burton, Charles F. Tyrwhitt Drake
1904 · Fine
€45
John Reed
1932 · Fine
€40
Carl David Tolmé Runge
1916 · Fine
€50
Pieter Joseph Cruse
1911 · Fine · NL
€30
Klaas Johan Pen
1935 · Fine · NL
€35
Smithsonian Institution
1935 · Fine
€45
Morris Raphael Cohen
1935 · Fine
€35
Inge, William Ralph
1926 · Fine
€50
Jesse Feiring Williams
1924 · Fine
€35
Frederic William Farrar
1905 · Fine
€35
Maximilien Marie
1925 · Fine
€35
Rudyard Kipling
1920 · Fine
€40
George Bernard Shaw
1927 · Fine
€30
Mary Greer Conklin
1923 · Fine
€40
Rudolf Otto
1929 · Fine
€35
John Dewey
1910 · Fine
€30
Erwin Madelung
1935 · Fine
€40
Henry Sinclair Hall, Samuel R. Knight
1904 · Fine
€30
John Willis Clark
1918 · Fine
€50
Frederick Soddy
1935 · Fine
€30
George M. Gould
1900 · Fine
€35
Wood, Robert Williams
1919 · Fine
€40
Karl Pearson
1934 · Fine
€30
E. B. Jamieson
1914 · Fine
€40
Jan van Leeuwen
1935 · Fine · NL
€45
Rudolf Steiner
1932 · Fine
€40
Howard Roger Garis
1924 · Fine
€30
Robert W. Chambers
1925 · Fine
€45