BRIEF [O.A.] Crisicopulo, Demetrio Author: Crisicopulo, Demetrio Recipient: Haeckel, Ernst Dating: 03.10.1881
BRIEF OHNE UMSCHLAG Recipient: Haeckel, Ernst Corporation: Oesterreichisch-Ungarischer Lloyd, Verwaltungsrath der Dampfschiffahrt-Gesellschaft Dating: 15.08.1881
BRIEF OHNE UMSCHLAG Krauseneck, Gustav Adolf Author: Krauseneck, Gustav Adolf Recipient: Haeckel, Ernst Dating: 12.09.1881
BRIEF OHNE UMSCHLAG Krauseneck, Valentine Author: Krauseneck, Valentine Recipient: Haeckel, Ernst Dating: 31.10.1881
BRIEF [O.A.] Krauseneck, Heinrich Author: Krauseneck, Heinrich Recipient: Haeckel, Ernst Dating: 15.01.1881
BRIEF [O.A.] Krauseneck, Heinrich Author: Krauseneck, Heinrich Recipient: Haeckel, Ernst Dating: 28.01.1881
BRIEF [O.A.] Krauseneck, Heinrich Author: Krauseneck, Heinrich Recipient: Haeckel, Ernst Dating: 22.04.1881
BRIEF [O.A.] Krauseneck, Heinrich Author: Krauseneck, Heinrich Recipient: Haeckel, Ernst Dating: 15.06.1881
BRIEF [O.A.] Krauseneck, Heinrich Author: Krauseneck, Heinrich Recipient: Haeckel, Ernst Dating: 23.06.1881