hidden sheet counter numbers

[Karlveh]

Hello,

does anyone know, why the chinese post printed hidden sheet counter numbers onto the left or right corner stamp of a sheet.
This hidden number replaced the standard black number on the sheet margin.
Is there more information on this numbers ? such as print place .....
So happend by end of the year 1999 until year 2002. later on every stamp was marked with this number visible only under uv-light.

Any informaton are very welcome

Karl

[archiem]

Did you contact the CSS new issues contact as I suggested previously?

[Karlveh]

Hello archiem,

I tried, but the mail adress is not valid

Karl

[archiem]

Current new issues editor (includes PRC) for CSS is William Wise at william.wise@cox.net
Current Librarian for CSS is Hugh Lawrence at hugh.lawrence@att.net

Try either of both of these gentlemen with your question.

Apologies if I gave you wrong information previously.