Morris Raphael Cohen
1935 · Fine
€35
René Descartes
1912 · Very good
€85
Aristotle
1901 · Good
€70
Adriaan Pit
1930 · Good · NL
€25
Yogananda Paramahansa
1931 · Fine
€125
Freda Dinn
1903 · Very good
€35
E. V. Lucas
1924 · Good
€20
Pieter Lodewijk Muller
1917 · Fair · NL
€55
Adolf Engler
1917 · Good
€25
Roger Eliot Fry
1931 · Very good
€30
A. S. Neill
1935 · Very good
€45
Percival Lowell, Pforzheimer Bruce Rogers Collection (Library of Congress)
1904 · Very good
€45
Maria Montessori
1931 · Good
€110
Plato
1917 · Good
€30
William Kingdon Clifford
1914 · Fair
€35
Luigi Pirandello
1913 · Good
€30
Richard Strauss
1935 · Good
€40
Herman Gorter
1935 · Very good · NL
€40
Christiaan Lodewijk Houthuysen
1930 · Good · NL
€30
Rabindranath Tagore
1935 · Good
€30
Josiah Royce
1903 · Very good
€65
George Santayana
1908 · Very good
€55
Eugène Pittard
1926 · Good
€20
Louis Couperus
1906 · Very good · NL
€50
Thomas Troward
1922 · Good
€30
Dock, Lavinia L.
1905 · Good
€20
H. Stanley Redgrove
1935 · Fair
€15
George Santayana
1935 · Very good
€75
Alfred Wegener
1906 · Very good
€55
Petrus Johannes Blok
1914 · Good · NL
€40
Ernest Shurtleff Holmes
1935 · Fair
€15
Hezekiah Butterworth
1906 · Good
€20
G. N. Watson
1935 · Good
€20
Upton Sinclair
1927 · Very good
€75
Bādarāyaṇa.
1908 · Good
€70
Hilaire Belloc
1908 · Good
€70
Louis Couperus
1904 · Very good · NL
€25
Abraham Kuyper
1914 · Good · NL
€20
Three Initiates
1928 · Good
€20
Silvanus Phillips Thompson
1935 · Very good
€35
Carlton C. Curtis
1907 · Fine
€50
Burnett Hillman Streeter, R. Brook
1919 · Fair
€15
Nederlandse Mycologische Vereniging
1918 · Fair · NL
€15
Margery Williams Bianco
1935 · Good
€20
Joseph Le Conte
1928 · Very good
€30
Friedrich Fröbel
1913 · Good
€20
Auguste Comte
1930 · Good
€30
W. Simon
1912 · Good
€70
Bronger van Halteren
1911 · Good · NL
€65
F. Pijper
1915 · Very good · NL
€40
Peter Willem Hendrik Truyen
1901 · Fair · NL
€15
Hegeler Institute
1924 · Fine
€100
F. Pijper
1923 · Very good · NL
€75
John Joly
1932 · Very good
€75
Mrs. Anna Jameson
1912 · Fair
€15
Julie Hoek
1930 · Very good · NL
€35
Jan van Leeuwen
1924 · Very good · NL
€30
Koninklijk Instituut voor de Taal-, Land- en Volkenkunde van Nederlandsch-Indië.
1915 · Good · NL
€20
Lewis Spence
1935 · Good
€90
Foeke Buitenrust Hettema
1914 · Very good · NL
€55