Items

• Letter from n.d. (Dienst financien) to Plessner, Helmuth

  1952-05-08
• Letter from Hammelsbeck, Oskar to n.d.

  1943-02-11
• Letter from n.d. (RIAS) to n.d.

  1905-05-27
• Letter from Kundler (RIAS) to Plessner, Helmuth

  1964-10-17
• Letter from Engel (RIAS) to Plessner, Helmuth

  1964-10-27
• Letter from Baumann, Frieda to n.d.

  1971-09-03
• Letter from Plessner, Helmuth to Heringa, J.

  1964-05-31
• Letter from n.d. (Rector en Senaat Rijksuniversiteit Groningen, Commissie 350-jarig bestaan) to Heringa, J.

  1964-06-05
• Letter from Heringa, J. to Plessner, Monika

  1996-04-12
• Letter from Plessner, Monika to Heringa, J.

  1996-04-17
• Letter from Mey, Kurt to Plessner, Helmuth

  1977-09-02
• Letter from Casper to Plessner, Helmuth

  1977-09-01
• Letter from Marjorie to Plessner, Helmuth

  1977-09-04
• Letter from Keller, Wilhelm to Plessner, Helmuth
• Letter from Bremme, Beate to Plessner, Helmuth

  1977-09-04
• Letter from Wintgen, Helene to Plessner, Helmuth

  1977-09-02
• Letter from n.d. to Plessner, Helmuth

  1977-09-01
• Letter from Ruth to Plessner, Helmuth
• Letter from Bollnow, O.F. to Plessner, Helmuth

  1977-09-03
• Letter from Heyl, Cornelis Freiherr von to Plessner, Helmuth

  1977-09-07
• Letter from Marianne to Plessner, Helmuth
• Letter from n.d. to Plessner, Helmuth
• Letter from Kalow, G. to Plessner, Helmuth
• Letter from Weber, Werner to Plessner, Helmuth

  1977-09-01
• Letter from Klainguti, Gian to Plessner, Helmuth

  1977-09-05