You may have a tough time identifying this stamp. Don’t feel badly, because following World War I the Allied Powers had a tough time figuring out what to do with the country it comes from.
The stamp is from Memel, originally part of Prussia but heavily Lithuanian.
Following the war, Memel was detached from Germany and administered by the French. But this arrangement fell apart in less than three years. During this time Memel never had stamps of its own but relied on overprints first of German, then French and finally Lithuanian stamps.
The stamp features a Lithuanian overprint. Originally an Offical stamp it was never actually released until it took on this overprint. The “Klaipeda” refers to both an alternate name used for Memel and a port city on the Baltic.
If you would like to add a copy of this fascinating stamp to your collection, I have a limited stock.
Klaipeda was seized by the Nazis in March, 1939.