



The stamp has two separate cancels, one from France and one from the USA. The only reason I can think of why the USA one was added was if the letter was forwarded once it was received in the USA.
In the example below the multiple cancels were placed on the back but you get the idea.


Thank you smauggie.
I like the top right on the back of your example where it has both the slogan and waving line cancels. Likely the same situation with the French stamp that I posted.

I'm sorting through a lot of classic French stamps that I won on Ebay last week and came across this one which made me stop and think, "Something isn't right here." It is France 332 with the subject of France congratulating the U.S. on the 150th anniversary of the Constitution. It has both a contemporary French postmark (wavy lines machine cancel) and a U.S. slogan cancel. My question is when did the US slogan cancel come into existence? Saving Bonds started being sold about 30 months before the stamp was issued, so a postmark from the late 1930s is plausible; however, is this some more recent philatelic creation? 

re: "BUY U.S. SAVINGS BONDS" ... in France?
The stamp has two separate cancels, one from France and one from the USA. The only reason I can think of why the USA one was added was if the letter was forwarded once it was received in the USA.
In the example below the multiple cancels were placed on the back but you get the idea.



re: "BUY U.S. SAVINGS BONDS" ... in France?
Thank you smauggie.
I like the top right on the back of your example where it has both the slogan and waving line cancels. Likely the same situation with the French stamp that I posted.