Although not letterhead as such, this was simply too fascinating to  ignore.
A U.S. tank heroically drags Hitler, Hirohito & Mussolini home after capture. We then see the same three characters in a pen, but as pigs ready to be ‘cured’; the dour-faced, swastika-sporting Hitler-pig an especially creepy sight.
A quick investigation reveals this sheet to be one of a number of writing paper designs in a pack called ‘Insult the Axis Powers’; stationery released during World War II to be used as a humorous morale boost when writing to loved ones in the forces.
‘Bring home the bacon’, 1939-45 | Submitted by Johanna

Although not letterhead as such, this was simply too fascinating to ignore.

A U.S. tank heroically drags Hitler, Hirohito & Mussolini home after capture. We then see the same three characters in a pen, but as pigs ready to be ‘cured’; the dour-faced, swastika-sporting Hitler-pig an especially creepy sight.

A quick investigation reveals this sheet to be one of a number of writing paper designs in a pack called ‘Insult the Axis Powers’; stationery released during World War II to be used as a humorous morale boost when writing to loved ones in the forces.

‘Bring home the bacon’, 1939-45 | Submitted by Johanna