Block stamp China 1893 Scott 153a 1/2c orange "Coat of Arms" MNH original issue.The 2014 Scott Classic Specialized 1840-1940 catalogue has (in the China section), for Shanghai 1865-1896, 183 major descriptive numbers. Of those, 14 are CV <$1-$1+, or 8%. If one raises the CV bar from $2 to $10+, 64 more stamps can be added (35%). Shanghai stamps are fairly expensive for the WW classical collector. And some are very expensive- up to CV $28,000. ;-)

MNH