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These two coins should be in a new country under China-Republic. It should be under Chinese Soviet
https://en.numista.com/catalogue/pieces22165.html
https://en.numista.com/catalogue/pieces21965.html

These should be in a new province under China-Republic, Sinkiang
https://en.numista.com/catalogue/pieces17682.html
https://en.numista.com/catalogue/pieces17679.html

These should be under a new country under China-Republic, Empire of China (distinct from the ancient dynastic empires. The Republic of China was temporarily succeeded by the Empire of China under Yüan)
https://en.numista.com/catalogue/pieces16254.html
https://en.numista.com/catalogue/pieces16004.html

This should be under Chekiang Province in China-Ancient
https://en.numista.com/catalogue/pieces15604.html

This should be under Hupeh Province in China-Ancient
https://en.numista.com/catalogue/pieces21071.html

This coin already exists under https://en.numista.com/catalogue/pieces20617.html. The additional coin entry has a different calligraphy which I discussed in a previous post. Please decide whether to merge the entries of delete the extra.
Delete: https://en.numista.com/catalogue/pieces22770.html

This should be renamed 1 Cash - Chih Tao (yüan pao), year 995
https://en.numista.com/catalogue/pieces22769.html

The entire entry of Empire in China-Ancient should be under Yuan (1889-1949)

Anhwei and Kirin in China-Ancient should have Province written after it.

God Chinese coins are a headache.

Απόσπασμα: fliegendehollanderThis should be renamed 1 Cash - Chih Tao (yüan pao), year 995
https://en.numista.com/catalogue/pieces22769.html

this coin is mine  
you mean this coin is from "Chih Tao" reign?
on this site:
http://www.sportstune.com/chinese/coins/idpage.html
there is "Chih Tao Yuan" in Northern Sung Dynasty, but the top character looks different (the bottom characters are variants if I see right)

only the left and right characters (which say the coin's name?) are the same in this case

Απόσπασμα: fliegendehollanderThis coin already exists under https://en.numista.com/catalogue/pieces20617.html. The additional coin entry has a different calligraphy which I discussed in a previous post. Please decide whether to merge the entries of delete the extra.
Delete: https://en.numista.com/catalogue/pieces22770.html

you mean the characters are kalligraphy variants? To me, the right character looks totally different.
my coin has four horizontal lines in the top left part of the character, which this coin doesn't have

Yes they are just different fonts. It's similar to how you won't be able to read Gothic script sometimes when it's using the Lating alphabet.

https://en.numista.com/forum/topic3693.html#p20158

Due to this post I will upload a different coin page for each variant

And sorry, mind-fart, the second coins should be huang-sung tung-pao

Απόσπασμα: androlonly the left and right characters (which say the coin's name?)

The rule of top and bottom characters being the Era name and the left and right being the currency is only always true for the Ch'ing (Qing) Dynasty.

Although it's the common rule for most cases, an overwhelming number of Sung (Song) coins are written in the format top-right-bottom-left. The only way to really find out which is the era name is to locate 通寶，元寶 or 重寶