Friedrich Fröbel
1913 · Good
€20
Jan Jacob Bruins
1935 · Very good · NL
€45
Frans Verschoren
1913 · Good · NL
€20
Arthur A. Noyes
1935 · Good
€20
Nicolass Muller
1915 · Fine · NL
€35
Alexander Findlay
1919 · Good
€75
Ph Spinhoven, T.K. Bouman
1908 · Very good · NL
€25
I. A. Kapandji
1919 · Very good
€85
Burnett Hillman Streeter, R. Brook
1919 · Fair
€15
F. Matthias Alexander
1935 · Fine
€35
S. Coolsma
1902 · Good · NL
€80
Thompson, D'Arcy Wentworth
1931 · Fine
€35
Klikspaan
1935 · Fair · NL
€35
Theodoor Jorissen
1902 · Good · NL
€30
Harm Bouwman
1916 · Very good · NL
€30
Felix Klein
1926 · Very good
€35
Willem Storm van Leeuwen
1924 · Very good · NL
€75
Lotta Jean Bogert
1935 · Fair
€20
Yogananda Paramahansa
1931 · Fine
€125
Martin Klopstock
1911 · Good
€35
Frederik Carel Gerretson
1927 · Good · NL
€70
Robert Fruin
1923 · Good · NL
€30
Ernst Cassirer, Claus Rosenkranz
1935 · Good
€25
Leslie Brainerd Arey
1924 · Very good
€45
Jac Hijma
1910 · Very good · NL
€85
Florian Cajori
1929 · Good
€65
Lodewijk van Deyssel
1923 · Very good · NL
€85
Samuel Schmucker Sadtler
1935 · Very good
€45
Frederick Moore Simpson
1908 · Very good
€35
Friedrich Fröbel
1919 · Good
€20
A. S. Neill
1935 · Very good
€45
Otto Zuckerkandl
1922 · Good
€45
Wilbur Pardon Bowen
1935 · Good
€50
William Archer
1925 · Fair
€55
Eugène Pittard
1926 · Good
€20
Frederick Orpen Bower, Sydney Howard Vines
1903 · Fair
€45
Jan Frederik van Someren
1900 · Very good · NL
€60
A. Kuyper
1931 · Very good · NL
€55
Frans Bastiaanse
1924 · Good · NL
€55
Jørgen Peter Müller
1902 · Fine
€155
F. S. Macaulay
1922 · Fine
€135
Eskelhoff Carsjen Gravemeijer
1902 · Good · NL
€30
James Martineau
1935 · Very good
€80
Henri Poincaré, J. McKeen Cattell
1915 · Good
€50
Jan Casper Schreuder
1930 · Good · NL
€45
Abraham Kuyper
1907 · Very good · NL
€30
Abraham Kuyper
1935 · Very good · NL
€50
Edwin A. Burtt
1926 · Very good
€25
Otto Jespersen, Otto Jespersen
1904 · Good
€95
J.L. Beijers (Firm)
1928 · Very good · NL
€40
George Sydenham Clarke
1910 · Fine
€30
George Brant Bridgman
1920 · Very good
€45
Jules Bernard Luys
1909 · Good
€25
Rabindranath Tagore
1917 · Very good
€35
Thomas Richard Parsons
1925 · Good
€30
H. Newell Martin
1903 · Fine
€40
Hélène Swarth
1921 · Good · NL
€30
Wouter Hendrik Van Seters
1935 · Good · NL
€50
Salisbury, Rollin D.
1909 · Fine
€65
Three Initiates
1928 · Good
€20