<Li> Canada--a combination of a bird wing and an aircraft wing in a red circle and flanked by the words Canada Post / Postes Canada . Previously the words Canada, Canada Post, or Canada Post Corporation) were used on post boxes . Until the early 1970s, post boxes had the words "Royal Mail" and the Royal Coat of Arms of Canada . </Li> <Li> Continental Europe--most designs include a Post horn, like those used by postmen to announce their arrival . In Germany the post horn is the only element indicating post services . </Li> <Li> France--the arrow - shaped logo of La Poste . </Li> <Li> Greece--Hellenic Post use the head of god Hermes wearing a winged petasos (summer hat) as their logo . Hermes was usually portrayed as the messenger of the gods </Li>

What does the day on the postbox mean