Ernest Thompson Seton
1929 · Fine
€35
F. Matthias Alexander
1935 · Fine
€35
John Dewey
1910 · Fine
€30
J. Arthur Thomson
1909 · Fine
€45
Pieter Joseph Cruse
1911 · Fine · NL
€30
Thompson, D'Arcy Wentworth
1931 · Fine
€35
Guillaume Groen van Prinsterer
1903 · Fine · NL
€30
Nicolass Muller
1915 · Fine · NL
€35
Romain Rolland
1918 · Fine
€50
H. Newell Martin
1903 · Fine
€40
H. Newell Martin, Ernest Gale Martin
1904 · Fine
€40
Alfred Russel Wallace
1935 · Fine
€35
George Bernard Shaw
1927 · Fine
€30
Rudolf Otto
1929 · Fine
€35
Carl David Tolmé Runge
1916 · Fine
€50
George M. Gould
1900 · Fine
€35
Mortimer Menpes, Dorothy Menpes
1901 · Fine
€40
Carlton C. Curtis
1907 · Fine
€50
Ika A. Thomése
1935 · Fine · NL
€35
Jesse Feiring Williams
1924 · Fine
€35
Antoni Christiaan Winand Staring
1900 · Fine · NL
€30
Klaas Johan Pen
1935 · Fine · NL
€35
Eduard Strasburger
1924 · Fine
€40
James Law, James Law - undifferentiated
1904 · Fine
€35
Hilaire Belloc
1929 · Fine
€35
James Martineau
1923 · Fine
€40
A. A. Milne
1926 · Fine
€30
Arthur van Schendel
1921 · Fine · NL
€35
Inge, William Ralph
1926 · Fine
€50
George Washington Carey, Inez E. Perry
1914 · Fine
€30
E. B. Jamieson
1914 · Fine
€40
Ernst Heinrich Philipp August Haeckel
1900 · Fine
€30
Thornton W. Burgess, Harrison Cady
1931 · Fine
€30
Eduard Strasburger
1935 · Fine
€45
Alfred North Whitehead
1930 · Fine
€40
Abraham Kuyper
1911 · Fine · NL
€30
Willem Jan Maria Westerwoudt
1915 · Fine · NL
€40
Gilbert Keith Chesterton, Catholic Way Publishing Staff
1913 · Fine
€35
Jean-Jacques Rousseau
1927 · Fine
€30
Henry Gray F.R.S., Henry Vandyke Carter
1915 · Fine
€50
Peter Lund Simmonds, Simmonds P. L. (Peter Lund)
1923 · Fine
€50
J. M. Barrie
1921 · Fine
€30
Dorothy Canfield Fisher
1931 · Fine
€35
Mary Greer Conklin
1923 · Fine
€40
Frederic William Farrar
1905 · Fine
€35
Mādhavakara.
1924 · Fine
€30
Walter E. Thirring
1906 · Fine
€40
Mary Shelley
1935 · Fine
€40
Hezekiah Butterworth
1908 · Fine
€30
Henri Poincaré
1910 · Fine
€30
Ivo Struyf
1909 · Fine · NL
€40
Theodore Shennan
1912 · Fine
€45
John Willis Clark
1918 · Fine
€50
Jan Frederik Beerens
1910 · Fine · NL
€50
Henry Sinclair Hall, Samuel R. Knight
1904 · Fine
€30
Maximilien Marie
1925 · Fine
€35
Richard Francis Burton, Charles F. Tyrwhitt Drake
1904 · Fine
€45
Morris Raphael Cohen
1935 · Fine
€35
Fred Gipson
1935 · Fine
€35
Erwin Madelung
1935 · Fine
€40