Thor and the wings on his helmet?

To my knowledge, that´s a superhero question, as the Marvel version of Thor has a winged helmet. Thor himself travelled the skies as a Thunder God, so the wings could be related to that. Winged shoes are traditionally a symbol of messenger gods in mythology (aka Hermes/Mercury). As a side point, my real name (Torgrim) means "Thor´s helmet" or "Thor´s face mask". In mythology, there are no references to the original Thor having a winged helmet, unless someone can prove me wrong. :)