Russia - Stamps issued by the army of the West.
It was led by Count Paul Mikhailovitch Awaloff-Bermondt, a
White Russian adventurer who sought, under the German
/ Polish General Rüdiger von der Goltz to create a German
controlled Latvia and to restore a Russian Czar in the Baltic
Provinces, in 1919. Defeated, he fled to Denmark.
There has been some debate in philatelic circles as
to whether the stamps served some postal use within
the area controlled by this army.
The overprinted sets were considered as speculative issues.

From Chris Doran:

