cover SHANGHAI: 1899 (16 July) 1c. "I.C.P." stationery card with additional "C.I.P." 1c. and 2c. cancelled by Chefoo bilingual c.d.s. with Hong Kong 2c. carmine pair cancelled by the Shanghai "I.P.O." and c.d.s., addressed to Germany with transit c.d.s. via Hong Kong; light soiling, unusual