Expedition of Prof. Dr. Karl Sapper to Neu-Mecklenburg: Vol. 1 Add to clipboard BArch, R 1001/2373 File Aug. 1907 - Apr. 1910 Part of Federal Archives (Archivtektonik) In: Expedition of Prof. Dr. Karl Sapper to Neu-Mecklenburg
Expedition of Prof. Dr. Karl Sapper to Neu-Mecklenburg: Vol. 2 Add to clipboard BArch, R 1001/2374 File Apr. 1910 - Nov. 1912 Part of Federal Archives (Archivtektonik) In: Expedition of Prof. Dr. Karl Sapper to Neu-Mecklenburg