Items

• Letter from Koenig to n.d.

  1925-02-18
• Letter from Koenig to n.d.

  1925-03-24
• Letter from Koenig to n.d.

  1925-06-12
• Letter from Koenig to n.d.

  1925-06-01
• Letter from Koenig to n.d.

  1925-07-14
• Letter from Koenig to n.d.

  1925-07-31
• Letter from Koenig to n.d.

  1925-08-07
• Letter from Koenig to n.d.
• Letter from Koenig to Plessner, Helmuth

  1928-11-04
• Letter from Koenig to n.d.

  1925-10-19
• Letter from Koenig to n.d.

  1925-10-20
• Letter from Koenig to n.d.

  1925-11-21
• Letter from Koenig to n.d.

  1925-12-12
• Letter from Koenig to n.d.

  1926-01-11
• Letter from Koenig to n.d.

  1926-01-24
• Letter from Koenig to n.d.

  1926-02-24
• Letter from Koenig to n.d.

  1926-02-27
• Letter from Koenig to n.d.

  1926-03-06
• Letter from Koenig to n.d.
• Letter from Koenig to Plessner, Helmuth

  1929-01-01
• Letter from Koenig to n.d.

  1926-07-29
• Letter from Koenig to n.d.

  1926-12-31
• Letter from Koenig to n.d.

  1927-06-13
• Letter from Koenig to n.d.

  1927-06-13
• Letter from Koenig to n.d.

  1927-05-31