Can Help Identify This Italian Stamp?

Good day to all. Attempting to find information about this stamp with red overprint and signature of unused stamp. I believe it was done in the mid to late 30's, but do not have specific scott number ect. Any information would be appreciated. Thank you in advance.

These stamps are actually Polish. Polish 2nd Corps in Italy WWII. Not listed in Scott, but listed in Sassone #18-22. Cat value 2008 = $15.00 MNH



Background: After WWII the Polish 2nd Corps stayed in Italy to administer the Barletta-Trani DP camp and generally provide for displaced Poles. This included producing stamps for use on internal Italian post and external mail, by agreement with the Italian government. The series offered in this lot was originally produced in Italian currency with new designs, in two stages with the five values included printed first and then Lira denominations of similar design printed later. These five stamps were later overprinted.

Following the period of postal validity for these stamps 5000 sets were overprinted (apparently, this is based on one estimate) to continue to raise money for displaced Poles and make a political statement directed at the regime which took control of Poland following WWII. The overprints refer to F.D.R.'s famous "Four Freedoms" speech and the overprints expressly state "HONOR THE FOUR FREEDOMS" which is followed by a reproduced signature of Franklin D. Roosevelt. These overprints were applied to different denominations from the 15c to the 80c in red or black and either in English, Polish or French.

blaze, this is a privately produced issue, though I'm not certain if this means the overprint or both overprint and stamp. There were stamps produced in Italy for the Italians who were stationed there issued in late '45 or sometime in '46. (Sources vary.) I'm still not sure how this all worked out as I don't know much about the post-war occupation of Italy. (I think things returned to 'normal' very quickly unlike in Germany.) Adding to the mix are similar stamps overprinted by the Polish Government in Exile ten years later. (I assume they were located in England as during the war, but, again, I know little about them.) I hope someone can chime in with more and better information.

More information:

http://sossi.org/exile/poland.htm
https://www.sandafayre.com/philatel...ernment.html

Thank you so much for the wonderful background history information provided by both of you pertaining to this specific stamp.

For anyone that may be interested about the 4 Freedoms concept:

Franklin D. Roosevelt had expressed in his State of the Union Speech in 1941 focusing on National Security of the US: 4 declarations for all citizens referred to as the 4 Freedoms: Freedom of Speech, Freedom of Religion, Freedom of Want and Freedom of Fear. It also discussed helping allies of the USA.
The Freedom of Want and Freedom of Fear concept was also presented during Roosevelt's speech at the United Nations pertaining to foreign policy. The Freedom of Want concentrated with the idea that all nations with economically understanding should be able to have peaceful lives within their own countries. The Freedom of Fear, based on reduction of armaments so no nation creating act of aggression towards other neighboring countries.
This State of the Union Speech addressed in the US Congress by the Former President, Franklin D. Roosevelt, occurred 11 months before the bombing of Pearl Harbor by Japan.
Eleanor Roosevelt, the former President's Franklin D. Roosevelt's wife, used the concept of the 4 Freedoms with the United Nations in the Human Bill of Rights.
The 4 Freedoms is also expressed on the Roosevelt Memorial in Washington DC.

Thank you again for the information both of you provided! Have a great day to all!