Subasta Bidspirit | ✉ CHINA. 1879. SHANG-HAI to

✉ CHINA. 1879. SHANG-HAI to FRANCE. Envelope franked with French 5 cts. green and two 15 cts. bister stamps, tied by 5104 grill cancel of french postal office of Shanghai. Very rare franking combination for the 35 cts. rate, one flap missing.