Macau’s magic square stamps just made philately even more nerdy – The Guardian
The Guardian Macau's magic square stamps just made philately even more nerdyThe GuardianMagic squares have long fascinated soothsayers, herpetologists, mystics, architects, soldiers, artists, mathematicians…and now, stamp collectors. Macau, the former Portuguese colony now a part of China, has just issued a set of magic square stamps… More: continued here