The letters are Mintmarks showing were the coin was made other than in Philadelphia.
CC= Carson City- O= New Orleans- S= San Francisco
Could you please explain what you mean by "nimm"? What is the coin's denomination? If it is foreign, do you know what country it came from? What image(s) and/or inscription(s) are on the coin?
Those letters are mintmarks that tell where the coin was minted. S means it was minted in the San Francisco Mint.
If that is a private mint coin, it is probably the weight of the coin.
On an US coin it can mean "cents" or it can be the mint mark of the Charlotte Mint, which existed only from 1838 to 1861.
You need to give the denomination and date of the coin. Also where you see the 77 at on the coin.
"10k cco" may refer to 10,000 cubic centimeters, which is equivalent to 10 liters.
It could mean anything depending on the coin. What country? What year? What denomination? What does the coin appear to be made from?
Could you please explain what you mean by "nimm"? What is the coin's denomination? If it is foreign, do you know what country it came from? What image(s) and/or inscription(s) are on the coin?
Two sides of a coin
A word for a long complicated procedure is: 'Rigmarole' CCo A word for a long complicated procedure is: 'Rigmarole' CCo
It means that the coin is rare. For example a 1909-S VDB cent is a key date. This coin is rare.
An "S" mintmark just means that the coin was made in the San Fransisco Mint.
7 Sides on a Twenty Pence Coin
If you mean a mint mark on the reverse of the coin, it's a D or S but not a P. Please look at the coin again.
By the serial number.
The Coleman Black Hills Gold Jewelry company has a trademark that bears the letters CCO
7 Sides on a Twenty Pence Coin