How to make money by selling China Stamps.

If you see following screenshot you will be surprised how much money a PIECE OF PAPER is worth.

It's all stamps from CHINA.

Not sure whether this are genuine stamps or forgery stamps (facsmile or copy).

Also not sure it's real value or artifically inflated by SHILL BIDDING or false bidding ?

So make sure what are Stamps of China and Is it really  worth it ?