This little trio of stamp treasures were created by my Number One Son, these and the rest of the collection were displayed at the Tate Modern when he was asked to give a talk there, See more about him on Culture 24. He has just completed a set of money which has amazing detail, watch this space.
I just love odd numbers, something different about them, like they don’t want to be the norm. However as INDECOROUS TASTE stated on her comment, three , five, seven etc, produces harmony when placing objects in any design. when I place flowers in a vase its always one or three or five ……….., never two or four