Paul Eltzbacher
1922 · Very good
€50
Willem Mulder
1910 · Very good · NL
€115
Friedrich Engels
1907 · Good
€50
Peter Kropotkin
1886 · Very good
€60
Paul Goodman
1920 · Good
€20
Abraham Kuyper
1893 · Fair · NL
€45
Bertrand Russell
1923 · Good
€20
May Sinclair
1924 · Very good
€100
Rudolf Rüetschi
1895 · Good · NL
€140
H. Clay Trumbull
1916 · Very good
€60
George Sydenham Clarke
1910 · Fine
€30
S. Stepniak
1899 · Fair
€80
Vladimir Il’ich Lenin, John Barber
1935 · Very good
€55
Snyder, Harry
1925 · Good
€20
John Stuart Mill
1895 · Good
€75
D. Embden
1902 · Very good · NL
€30
Frederik August Stoett
1908 · Very good · NL
€30
Alfred Percy Sinnett
1897 · Fair
€30
Christoph Ernst Luthardt
1873 · Very good
€125
Thorstein Veblen
1935 · Very good
€65
Лев Толстой
1904 · Good
€85
Clifford Whittingham Beers
1911 · Fine
€70
Walter Rauschenbusch
1917 · Good
€30
Abraham Kuyper
1905 · Very good · NL
€50
Friedrich Engels
1905 · Fine
€80
Bertrand Russell
1935 · Fair
€30
Gerardus Marinus Franciscus Snijders
1905 · Very good · NL
€35
Jan Willem Schneider
1925 · Very good · NL
€105
Thorstein Veblen
1921 · Good
€40
Benedetto Croce
1915 · Good
€30
Peter Kropotkin
1903 · Fair
€15
Seneca the Younger
1909 · Very good
€60
F. Edward Hulme
1898 · Fair
€45
Ferdinand Domela Nieuwenhuis
1904 · Fair · NL
€45
Arthur Henderson Smith
1935 · Fair
€40
Abraham Kuyper
1880 · Fine · NL
€110
Karl Marx
1870 · Fine
€195
John Henry Newman
1858 · Good
€35
Andrew Dickson White
1923 · Very good
€25
Henryk Sienkiewicz, Jeremiah Curtin
1898 · Very good
€60
Peter Kropotkin
1931 · Very good
€60
George Henry Borrow
1851 · Fair
€40
Edmund Garratt Gardner
1911 · Very good
€40
George Santayana, Colin D. Standish
1935 · Good
€55
Georgiĭ Valentinovich Plekhanov
1899 · Very good
€145
Abraham Kuyper
1907 · Very good · NL
€30
Benjamin Field, John C. Symons
1889 · Very good
€50
Theodore Parker
1884 · Good
€45
Santiago Ramón y Cajal
1935 · Good
€45
Willem Christiaan Knottenbelt
1873 · Good · NL
€65
Upton Sinclair
1935 · Good
€35
John Addington Symonds
1884 · Good
€85
Abraham Kuyper
1880 · Good · NL
€100
Samuel Dill
1930 · Very good
€95
Robert Michael Ballantyne, George Caleb Bingham
1882 · Very good
€155
Karl Marx, Friedrich Engels
1863 · Very good
€155
Henry Sinclair Hall, Samuel R. Knight
1904 · Fine
€30
Ludwig Feuerbach
1893 · Good
€115
John Ruskin
1907 · Good
€25
Robert Jacobus Fruin
1928 · Fine · NL
€55