cover 1879 envelope (opened out for display) to Shanghai bearing Great Britain 4d. (light scratch at top right corner of cover crosses stamp) cancelled by "LURGAN/316 duplex (18.12.79) in combination with Large Dragon 3 ca. pair with sheet margin at right centrally cancelled by "CUSTOMS/SHANGHAI" c.d.s. (18.2.80) and showing on reverse "HONG KONG" c.d.s. (9.2.80) as well as another strike of the Customs c.d.s. (15.2.80) for Shanghai. Fine 6 candarins rate cover. Ex Sir Percival David. Photo in colour