A6 Art Postcard #1 A6 Art Postcard #1 A6 Art Postcard #1 £1.25 Perfect for popping in the post to a friend or frame it and add to your gallery wall. This A6 postcard measuring approx 10x15cm. The front has an abstract print and the back has space to write your message. This postcard can also be bought as part of a set of six or twelve different designs. (If you are ordering one individual postcard, please use code 'CARDS' at checkout for reduced price postage).