Please check your coin again. All 1843 US silver dollars were minted in Philadelphia so they don't carry a mint mark, and more importantly the Carson City Mint didn't open until 1870.
If your coin does have that date and mint mark it's either a genuine silver dollar that was altered, or it's a counterfeit. A knowledgeable dealer or appraiser would need to look at it in person to decide which.
The value of a 1883 uncirculated cc silver dollar is $200.00 or more but,not over than $250.00
$200
There were no 1888-CC Morgam silver dollars minted.
If you have a 1895 Morgan with a Carson-City mintmark it's fake. 1893 was the last CC Morgan dollar.
The value for an 1879P morgan silver dollar, uncirculated, is about $45 (Red Book) price. If you have any Morgan's that have mintmark, CC, Carson City, the value goes up.
The value of a 1883 uncirculated cc silver dollar is $200.00 or more but,not over than $250.00
$200
There were no 1888-CC Morgam silver dollars minted.
You are going to have to provide the year the coin was minted - the mint mark 'CC' (Carson City) was minted on multiple year Silver Dollar coins.
Generally speaking, the Carson City silver dollar will have a greater value than one minted elsewhere during the same time period.
A certified example would have a average retail value of $2,000.00
If you have a 1895 Morgan with a Carson-City mintmark it's fake. 1893 was the last CC Morgan dollar.
A morgan silver dollar cost minimum 30 dollars but if it has a "S" or a "CC" mintmark it can sell up to 130 dollars.
The value for an 1879P morgan silver dollar, uncirculated, is about $45 (Red Book) price. If you have any Morgan's that have mintmark, CC, Carson City, the value goes up.
Please look at the coin again. No 1887 Morgans exist with CC mintmarks.
August 29, 2009 The more common 1880-CC dollar in MS65 grade has a value of $1625. The less common Proof-like 1880-CC dollar in MS65 grade has a value of $1900. The scarce Deep Mirror Proof-like {DMPL} 1880-CC dollar in MS65 grade has a value of $11,000.
August 25, 2017. Current value $350 to $390.