C. Bruhns
1920 · Very good
€55
Elias Loomis
1874 · Very good
€50
E. R. Hedrick
1920 · Very good
€60
George Boole
1882 · Fine
€65
Lewis Carroll
1918 · Very good
€80
Louis Couturat
1935 · Good
€70
George Boole
1856 · Good
€90
Leonhard Euler
1763 · Fair
€140
René Descartes
1912 · Very good
€85
Georg Wilhelm Friedrich Hegel
1813 · Very good
€110
Aristotle
1901 · Good
€70
Sir William Hamilton, 9th Baronet
1859 · Good
€75
James Orchard Halliwell-Phillipps, William Bourne
1839 · Good
€95
Harold Hilton
1914 · Good
€65
Henry B. Maglathlin
1869 · Very good
€50
Ron Larson, Roland E. Larson
1920 · Fair
€55
Hermann Cäsar Hannibal Schubert
1927 · Good
€65
A. S. Neill
1933 · Good
€90
P. Wijdenes
1932 · Very good · NL
€60
Brahmagupta, Henry Thomas Colebrooke
1835 · Good
€135
Plato
1864 · Good
€100
F. H. Loring
1923 · Very good
€120
Plato
1843 · Fair
€60
Carl David Tolmé Runge
1916 · Fine
€50
David Eugene Smith
1917 · Very good
€70
Michael Faraday
1874 · Fine
€65
F. S. Macaulay
1922 · Fine
€135
J. Hamblin Smith, Thomas Kirkland
1881 · Good
€70
Cassius Jackson Keyser
1935 · Good
€50
R. C. Boer
1926 · Very good · NL
€50
Richard Wagner
1800 · Good
€75
Jeremiah Day
1814 · Good
€140
Aristotle
1882 · Good
€95
Marion Lowell
1897 · Good
€55
Isaac Barrow
1922 · Fine
€75
Robert Edouard Moritz
1914 · Very good
€95
George Johnston Allman
1879 · Fine
€130
Augustus De Morgan
1903 · Very good
€60
Louis Bathe Rawling
1935 · Good
€55
Henry Longueville Mansel
1873 · Good
€60
Archimedes
1897 · Fine
€130
Salisbury, Rollin D.
1909 · Fine
€65
Christine P. Dancey, John Reidy
1935 · Good
€55
Florian Cajori
1929 · Good
€65
Georg Friedrich Bernhard Riemann
1889 · Very good
€70
Albertus Johannes Roijaards
1897 · Very good · NL
€80
William Ledley Vosburgh
1918 · Very good
€90
Bertrand Russell
1916 · Good
€80
Heinrich Durège, George Egbert Fisher
1867 · Good
€60
William Allen Whitworth
1870 · Very good
€55
Arthur B. Curtis
1929 · Fine
€60
Elias Loomis
1883 · Very good
€120
William Rowan Hamilton
1899 · Good
€135
Ebenezer Cunningham
1921 · Very good
€70
Karl Pearson
1924 · Very good
€75
Alfred L. Loomis
1877 · Good
€50
E. T. Whittaker, G. N. Watson
1920 · Fine
€75
L. E. J. Brouwer
1909 · Good · NL
€60
Balfour Stewart
1875 · Very good
€120
Elias Loomis
1854 · Good
€105