This artwork caused quite a splash (sorry, couldn’t resist that) when it appeared in Hong Kong Harbour briefly during May and June, 2013.  We despaired of ever seeing postcards of this one-time event, but here they are, and nice ones, too.  We have two of these 5-1/8″ x 6-7/8″ cards, both unused.  (The duck came back in 2023, with a friend, but we haven’t seen any cards of that yet.)  Grades: 1