South Korea: Mirror print
During the production of stamps many things can go wrong. We know the Perforation error, the plate error, missing a colour, wrong cut sheet, etc. On the exhibition sheets in the book "Apiculture" by Seo-Yong Kim (South Korea) we find a new error.
An offset printing on the green stamps of S. Korea 1963 the ink for the bee was not dry, therefore the bee was printed in reverse on the back of the next sheet
by Jan de Crom
taken from "The Postal Bee" 4/2007
Contact Group Bee Philately