Morris Raphael Cohen
1935 · Fine
€35
Lewis Carroll
1886 · Fine
€250
Lewis Carroll
1918 · Very good
€80
George Boole
1882 · Fine
€65
Ludwig Wittgenstein, Isidoro Reguera Pérez
1935 · Good
€45
Lewis Carroll
1914 · Very good
€25
Louis Couturat
1935 · Good
€70
George Boole
1856 · Good
€90
Georg Wilhelm Friedrich Hegel
1813 · Very good
€110
Sir William Hamilton, 9th Baronet
1859 · Good
€75
Aristotle
1901 · Good
€70
Aristotle
1578 · Good
€465
René Descartes
1912 · Very good
€85
Plato
1843 · Fair
€60
Aristotle
1579 · Fine
€1,405
Edmund Husserl
1913 · Good
€45
Sextus Empiricus.
1887 · Good
€40
Alfred North Whitehead, Bertrand Russell
1911 · Very good
€25
Ernst Cassirer
1930 · Good
€30
Bertrand Russell
1920 · Fair
€40
Francis Bacon
1930 · Fair
€45
Immanuel Kant
1885 · Good
€190
Christine P. Dancey, John Reidy
1935 · Good
€55
Francis Bacon
1621 · Very good
€1,550
Francis Bacon
1648 · Good
€725
C. Bruhns
1920 · Very good
€55
Francis Bacon
1625 · Fair
€550
Plato
1916 · Good
€20
Immanuel Kant
1802 · Good
€245
Elias Loomis
1874 · Very good
€50
John Torrey Morse
1915 · Very good
€40
A. S. Neill
1933 · Good
€90
Adriaan Pit
1930 · Good · NL
€25
John Stuart Mill, John M. Robson
1867 · Good
€140
Cassius Jackson Keyser
1935 · Good
€50