G. H. Hardy, J. G. Leathem
1916 · Fine
€35
Alexander von Humboldt
1876 · Very good
€150
Anthony Ashley Cooper Earl of Shaftesbury
1716 · Good
€415
Globe Fearon
1821 · Very good
€250
Aristotle
1882 · Good
€95
Constantin-François Volney
1796 · Fine
€355
Arthur Clutton-Brock
1935 · Good
€20
TETRIS
1748 · Fine
€1,000
Alexander Adam
1807 · Fair
€80
George Frederick Kunz
1935 · Very good
€40
Johannes Sobotta
1919 · Good
€50
Henri Poincaré, J. McKeen Cattell
1915 · Good
€50
J. W. Mackail
1935 · Good
€50
John Henry Parker
1846 · Very good
€120
Klikspaan
1935 · Fair · NL
€35
Heinrich Wölfflin
1920 · Good
€40
Jonathan Dymond
1879 · Good
€55
R. G. Collingwood
1670 · Good
€905
Asher Benjamin
1844 · Good
€90
Herbert E. Cobb
1935 · Very good
€30
Arthur Penrhyn Stanley
1883 · Fair
€30
Willem Kloos
1902 · Very good · NL
€65
William Thomson Kelvin, Peter Guthrie Tait
1884 · Very good
€115
Plato
1889 · Good
€60
Library of Congress. Classification Division.
1906 · Good
€20
E. T. Whittaker, G. N. Watson
1920 · Fine
€75
Friedrich Tiedemann
1847 · Good
€145
Ralph Cudworth
1703 · Very good
€540
R. Fletcher
1922 · Good
€20
Søren Kierkegaard
1884 · Good
€50
Georg Wilhelm Friedrich Hegel
1872 · Good
€125
John Ruskin
1808 · Fair
€145
A. Ansted
1906 · Very good
€45
Samuel Vince
1843 · Good
€75
Johannes Hoops
1911 · Good
€65
Theun de Vries
1935 · Good · NL
€20
H. A. Hare
1896 · Very good
€185
Frederick Moore Simpson
1908 · Very good
€35
George Santayana
1904 · Very good
€45
Werner Spalteholz
1906 · Good
€25
Walter Crum Watson
1917 · Fair
€25
Immanuel Kant
1801 · Good
€95
Pieter Cornelis Boutens
1916 · Very good · NL
€35
Alexander Wilson
1825 · Good
€175
Marion Lowell
1897 · Good
€55
Batty Langley
1741 · Good
€360
William Derham
1722 · Fine
€450
Friedrich Nietzsche
1915 · Fair
€25
D. R. Hay
1874 · Very good
€70
Eugène-Emmanuel Viollet-le-Duc
1875 · Good
€115
Martin Klopstock
1911 · Good
€35
Gertrude Atherton
1929 · Good
€40
Josiah Parsons Cooke Jr.
1882 · Very good
€120
Francis Atterbury
1751 · Good
€735
A. J. Downing
1867 · Fair
€75
Francis Bacon
1930 · Fair
€45
Ralph Nicholson Wornum
1861 · Very good
€50
Wood, Robert Williams
1919 · Fine
€40
M. Joustra
1915 · Good · NL
€25
Claude Phillips
1935 · Good
€30