Maximaphily is born accidentally at the end of the 19th century, at the initiative of philatelists how find interesting the "concordance" between the postcard, the stamp affixed on the front and also the obliteration.     It is one of the ten classes recognised in Philately.

Maximum  card is a postal stamp that affixed on the view side of a picture postcard and a cancellation (postmark) with maximum concordance between elements   :  this is the rule of maximaphily, an interesting hobby for children and adults