According to the model list on Tom Findley's site, the World was discontinued for 1956.

http://www.trfindley.com/flschwinn_1951_1959/1956.html

Can you look through the catalogs there and see if you can find a model that shows the decals you are looking for?

I have a set of the top tube and down tube decals for the early fifties World Traveler. They are sort of Art Deco looking. I'm not sure if these are the ones you are looking for though.