unused 2c. on 2ca. green, variety surcharge double, a horizontal pair from Setting A, pane 2 [1-2] showing the characteristic offset associated with this variety; a small corner fault at top right, some light age marks on the top perforations and paper hinge remainder, otherwise fine with full original gum. A rare multiple being one of only three pairs recorded. This pair is the companion to the pair sold from the M.D. Chow collection and forms the upper half of a block of four. Chen Shih Jen Certificate (1998). Photo