I sent the link to a friend who is Chinese but his english isn't the greatest... this was his response.

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These are none circulate curency any more because it is about 10-15 years old and they are not legal tender in China, in other words "obsulate".

The term this guy used is right "toilet paper". The meaning is wrong. "Toilet paper" in Chinese means worthless, like toilet paper, only used once and cannot reuse. Ten years ago, I went to China, the entrance fee to go to a toilet without running water was 1.00CNY (one Chinese Yuan).

The scan had been enlarged a lot, I still have some of those paper money with me which I know well enough.

Talking about value, the Chinese Yuan up their own value a lot for the last 4 years because it still not a universal currency, therefore they can set their own exchange rate.

I looked into the web on today's exchage rate:

The 1st note is a 10cents which = US$0.0260476
The 2nd note is a 20cents which = US$0.0320952
The 3rd note is a 50cents which = US$0.0802380

Don't forget those were 10-15 years old paper money which worth 0 US$ because Chinese Government up their exchange rate by at least 80% and they are using coins now.

Today, not even the bagger on the street take those, they will throw it back at you, want to hear the F words......

So much I know about Chinese currency.

Forgot to translate the last sentense SO I ask...
1st section in Chinese means "where is the washroom"
2nd section in Chinese means "not to mention"
3rd section in red in Chinese means "experience"

That is why the Chinese hardly understands tourist because they try to put unrelated words together.