Vaatlusõhupall Vene-Saksa rindel.

Vaatlusõhupall Vene-Saksa rindel.
View at www.ra.ee/fotis
  • Other title(s): Vaatlusõhupall Vene-Saksa rindel.
  • Date created: 1914-1917
  • Description: Vaatlusõhupall Vene-Saksa rindel.
  • Keywords: EFG1914 / World War I / World War, 1914-1918 / Air warfare
  • Provenance: The National Archives of Estonia
  • Provider: The National Archives of Estonia
  • Rights: In Copyright / The National Archives of Estonia
  • Document type: Photo