The 1901 Morgan with no mintmark is worth more than the one with the "O" mintmark, but the difference depends on the condition (grade) of the coins.
A 1901-O Morgan in the grade of EF-40 has an average value of $29.00
A 1901 Philadelphia (no mintmark) Morgan in the same grade is $105.00.
A Morgan dollar IS a silver dollar. The term Morgan refers to the designer George T. Morgan who created the images used from 1878 to 1904 and in 1921.
There's no difference. All silver dollars minted in 1894 used the Morgan design, named for the famous designer George T. Morgan.
A "Carson City Morgan Dollar" is simply a Morgan dollar produced at the Carson City, Nevada, mint. Such a coin can be identified by the mintmark "CC" on the reverse of the coin, beneath the tail feathers of the eagle.
The 1921 Chapman was a proof version of the Morgan Dollar. Very few were minted and because of this, they command a premium price.
There is no difference. They are the same coin but many people refer to them as "Liberty Dollars".
Replica coins are required to have the word "COPY" stamped on them somewhere.
It is quite easy, the reverse of peace dollars have an eagle sitting on a rock inscribed "PEACE", the reverse of Morgan dollars have an eagle with olive branches and arrows.
All replica coins sold in the USA are required to be marked with the word "COPY" in a conspicuous location on the coin. If a replica does not have the word "COPY", then it is a counterfeit.
Morgan dollars weren't minted from 1905 to 1920. Please check again and post a new question. FWIW, the normal wording for how coins are made is struck or minted, not stamped.
The replica will have the word "COPY" stamped an it somewhere. All replicas of coins must have that stamped on it somewhere. If it is not stamped with "COPY" it is probably a real deal.
Unless you find someone that collects "Counter Stamped" Morgan dollars, the value is just for the silver.
Please post a new and rephrased question. You're asking if a Carson City dollar is a Carson City dollar, which is of course ALWAYS true.