It took some work to figure this out, but here’s what we know:  sourced in Hong Kong, this unused postcard is made from a light, balsa-like wood and produced by Vintage Maze.  The Chinese text translates as “Rainbow Village” but this is a sort-of engraved perspective of the Choi Hung (rainbow) housing estate in Kowloon.  All those squares are windows or balconies.  Odd.  Grade: 1