Aunus

Aunus, or Olonets, is a town in eastern Karelia (Russia).
 * In April 1919, a Finnish paramilitary force invaded eastern Karelia. Originally, Finnish stamps were used cancelled with the Olonets cancel. In June, Finnish stamps overprinted AUNUS were released, with two distinct printings.
 * The Soviet Red Army took back nearly all of the region by the end of June. The overprints were used until October 1919. In the 1920 Treaty of Tartu, that remaining occupied area was returned to Russia.

 File:Aunus overprint.jpg|50p value. 

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