F. Matthias Alexander
1935 · Fine
€35
Ernest Thompson Seton
1929 · Fine
€35
Romain Rolland
1918 · Fine
€50
John Dewey
1910 · Fine
€30
Alfred Russel Wallace
1935 · Fine
€35
Nicolass Muller
1915 · Fine · NL
€35
H. Newell Martin
1903 · Fine
€40
H. Newell Martin, Ernest Gale Martin
1904 · Fine
€40
James Martineau
1923 · Fine
€40
Thompson, D'Arcy Wentworth
1931 · Fine
€35
Carl David Tolmé Runge
1916 · Fine
€50
Carlton C. Curtis
1907 · Fine
€50
Arthur van Schendel
1921 · Fine · NL
€35
Guillaume Groen van Prinsterer
1903 · Fine · NL
€30
Mary Greer Conklin
1923 · Fine
€40
E. B. Jamieson
1914 · Fine
€40
Eduard Strasburger
1935 · Fine
€45
Antoni Christiaan Winand Staring
1900 · Fine · NL
€30
Jesse Feiring Williams
1924 · Fine
€35
Ika A. Thomése
1935 · Fine · NL
€35
George M. Gould
1900 · Fine
€35
Abraham Kuyper
1911 · Fine · NL
€30
Rudolf Otto
1929 · Fine
€35
Mādhavakara.
1924 · Fine
€30
Hilaire Belloc
1929 · Fine
€35
Pieter Joseph Cruse
1911 · Fine · NL
€30
John Willis Clark
1918 · Fine
€50
Erwin Madelung
1935 · Fine
€40
Theodore Shennan
1912 · Fine
€45
J. Arthur Thomson
1909 · Fine
€45
Walter E. Thirring
1906 · Fine
€40
James Law, James Law - undifferentiated
1904 · Fine
€35
G. H. Hardy, J. G. Leathem
1916 · Fine
€35
Lewis Beesly, Thomas Baillie Johnston
1928 · Fine
€50
Gilbert Keith Chesterton, Catholic Way Publishing Staff
1913 · Fine
€35
George Bernard Shaw
1927 · Fine
€30
Ernst Heinrich Philipp August Haeckel
1900 · Fine
€30
Eduard Strasburger
1924 · Fine
€40
Klaas Johan Pen
1935 · Fine · NL
€35
Karel Čapek
1932 · Fine
€30
Paul Claudel, Claudel
1935 · Fine
€40
Morris Raphael Cohen
1935 · Fine
€35
Thornton W. Burgess, Harrison Cady
1931 · Fine
€30
Alfred North Whitehead
1930 · Fine
€40
W. L. van Helten
1935 · Fine · NL
€35
George Sydenham Clarke
1910 · Fine
€30
Henry Gray F.R.S., Henry Vandyke Carter
1915 · Fine
€50
Inge, William Ralph
1926 · Fine
€50
Dorothy Canfield Fisher
1931 · Fine
€35
Rembrandt Harmenszoon van Rijn, Holm Bevers
1900 · Fine
€50
Maurice Henry Hewlett
1926 · Fine
€45
George Washington Carey, Inez E. Perry
1914 · Fine
€30
Willem Jan Maria Westerwoudt
1915 · Fine · NL
€40
Leonard Anthony Springer
1915 · Fine · NL
€30
Rudyard Kipling
1907 · Fine
€40
Frederick Soddy
1935 · Fine
€30
Howard Roger Garis
1924 · Fine
€30
Mary Shelley
1935 · Fine
€40
Smithsonian Institution
1935 · Fine
€45
Frederic William Farrar
1905 · Fine
€35