Tags: propeller hats, beanies, hats.
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Propeller hats are seamed caps without
a brim. The propeller shape at the top of the beanie hat was designed in 1940 by
the science fiction artist Ray Nelson. Propeller hats were made popular in
the comic series Beany and Cecil. Propeller hats are worn for for humor
and those who wear them are called propellerheads.