Items

• Letter from Plessner, Helmuth to n.d. (Bestuur van het Sociologisch Instituut)

  1938-11-15
• Letter from Plessner, Helmuth to Buck, H. de

  1938-11-18
• Letter from Fischer, Hugo to Plessner, Helmuth

  1938-11-24
• Letter from Reinink, H.J. to Plessner, Helmuth

  1939-01-27
• Letter from Wiese, L. v. to n.d. (Sociologisch Instituut)

  1938-10-24
• Letter from Reinink, H.J. to Plessner, Helmuth

  1939-02-03
• Letter from Reinink, H.J. to Plessner, Helmuth

  1939-02-16
• Letter from Plessner, Helmuth to Reinink, H.J.

  1939-02-17
• Letter from Jahn, Georg to Plessner, Helmuth

  1938-11-03
• Letter from Jahn, Georg to Plessner, Helmuth

  1938-11-27
• Letter from Jahn, Georg to Plessner, Helmuth

  1938-12-15
• Letter from Jahn, Georg to Plessner, Helmuth

  1939-01-07
• Letter from Jahn, Georg to Plessner, Helmuth

  1939-01-13
• Letter from Jahn, Georg to Plessner, Helmuth

  1939-02-27
• Letter from n.d. (Sociologisch Instituut) to Plessner, Helmuth

  1939-02-25
• Letter from Jahn, Georg to Plessner, Helmuth

  1939-03-02
• Letter from Sombart, W. to Plessner, Helmuth

  1939-03-21
• Letter from Langeveld, M.J. to Plessner, Helmuth

  1939-10-31
• Letter from Plessner, Helmuth to Reinink, H.J.

  1939-05-24
• Letter from Langeveld, M.J. to Plessner, Helmuth

  1939-10-27
• Letter from n.d. (Sociologisch Instituut) to Plessner, Helmuth

  1939-10-23
• Letter from n.d. (Sociologisch Instituut) to Plessner, Helmuth

  1939-11-09
• Letter from Heemstra, J.A. to Plessner, Helmuth

  1940-02-27
• Letter from Plessner, Helmuth to Heemstra, J.A.

  1940-03-06
• Letter from Heemstra, J.A. to Plessner, Helmuth

  1940-03-11