China 1904 10c deep green Postage Due error, SGD142aChina 1904 (16 Mar) 10c deep green vertical pair, with error IMPERFORATE BETWEEN, Postage Due error, SGD142a. A very fine cancelled to order used example by Peking circular date stamp for 10 Mar 05, with much of the original gum remaining. Most certainly one of the finest quality used examples in existence. A very rare error of which less than 20 originally existed. The provisional issue of 1904 was the first Chinese Postage Due series. Prior to this