Inge, William Ralph
1926 · Fine
€50
Garrett Putman Serviss
1935 · Good
€95
Adriaan Pit
1930 · Good · NL
€25
Peter Willem Hendrik Truyen
1901 · Fair · NL
€15
Nederlandse Mycologische Vereniging
1918 · Fair · NL
€15
Plato
1917 · Good
€30
Petrus Johannes Blok
1914 · Good · NL
€40
Adolf Engler
1917 · Good
€25
Pieter Lodewijk Muller
1917 · Fair · NL
€55
Carlton C. Curtis
1907 · Fine
€50
Silvanus Phillips Thompson
1935 · Very good
€35
Lewis Foreman Day
1920 · Fine
€70
Henryk Sienkiewicz
1923 · Very good
€55
Eugène Pittard
1926 · Good
€20
Carl Gustav Jung
1915 · Very good
€25
Bronger van Halteren
1911 · Good · NL
€65
Christiaan Lodewijk Houthuysen
1930 · Good · NL
€30
Martin Klopstock
1911 · Good
€35
Louis Couperus
1906 · Very good · NL
€50
Herman Gorter
1935 · Very good · NL
€40
Erwin Rohde
1913 · Very good
€75
Gerrard Hickson
1922 · Very good
€35
J. van Lennep
1918 · Good · NL
€35
Louis Couperus
1904 · Very good · NL
€25
Jan van Leeuwen
1924 · Very good · NL
€30
Friedrich Hölderlin
1935 · Fair
€20
P. L. Verhulst
1935 · Fair · NL
€15
Foeke Buitenrust Hettema
1914 · Very good · NL
€55
Jacob van Lennep, Johannes Bosscha
1926 · Very good · NL
€90
Michael Idvorsky Pupin
1923 · Fair
€15
Jørgen Peter Müller
1902 · Fine
€155
H. Stanley Redgrove
1935 · Fair
€15
R. Fletcher
1922 · Good
€20
Heinrich Spoerl
1935 · Fair · NL
€25
Upton Sinclair
1927 · Very good
€75
A. S. Neill
1935 · Very good
€45
Gerrit Cornelis August Valewink
1918 · Fine · NL
€85
Beatrix Potter
1914 · Very good
€60
Hegeler Institute
1924 · Fine
€100
Julie Hoek
1930 · Very good · NL
€35
Richard Strauss
1935 · Good
€40
Three Initiates
1928 · Good
€20
René Descartes
1912 · Very good
€85
Johannes Hoops
1911 · Good
€65
Samuel O. L. Potter
1910 · Good
€30
Yogananda Paramahansa
1931 · Fine
€125
Charles Fort
1933 · Fair
€35
Samuel Gronemann
1935 · Good · NL
€110
Sigmund Freud
1906 · Good
€25
G. Wisse
1908 · Very good · NL
€30
Auguste Comte
1930 · Good
€30
André Gide, Josep Lozano
1931 · Very good
€35
J. van Lennep
1911 · Very good · NL
€45
Armando Palacio Valdés, Guy Everett Snavely
1919 · Good
€20
Claude Irwin Palmer
1912 · Good
€20
Anton Willem Nieuwenhuis
1909 · Very good · NL
€75
Johann Joseph Most
1928 · Good
€20
George Santayana
1935 · Very good
€75
Max Scheler
1935 · Good
€20
Jan Casper Schreuder
1930 · Good · NL
€45