C is for Cinderella

stamp with Cheval Paris, Couture pour hommes
Cheval Cinderella Stamp

It looks like a postage stamp, but this imaginary issue is without postal validity. The name refers to printed labels, including poster stamps, advertising labels, mail art, and charity seals. Many of the subjects depicted on these would be inappropriate for real postage stamps. Like the fairy-tale character who was not invited to the ball, Cinderella stamps are normally left out of the stamp catalogue.

a World War II serviceman's franked letter and a Cinderella label for relief of Bataan War Prisoners
Cinderella honoring Bataan Relief of Illinois

This private organization promoted humanitarian relief for Bataan War Prisoners. Several hundred Illinois men were victims of the Bataan Death March in 1942. United States, 1945.