1888 Horse & Dragon 20ca green, h/s in Chinese characters 'Taipeh to His Kou Foreign 5 cents' in black, additionally h/s 'His Kou 5 cents' in red, imperf at right & bottom from cnr of sheet. F-VF M, original gum with some offsets & wrinkles. Chan F33, SG C20 cat £1000 & under-catalogued. Very rare genuine example. 2017 Ceremuga photo cert. (P)