A 1900 Morgan dollar is common, circulated coins are $28.00-$35.00, typical Mint State coins are $40.00-$60.00.
The 1882 Morgan is very common, retail values for circulated coins is $17.00-$26.00. Mint State coins are $30.00-$50.00.
Morgan dollars are graded just like any other coin. Circulated examples are graded by how much wear the coins have. The grades for Mint State coins are determined by how well the coins are struck, mint luster, number an location of contact marks.
Assuming no mint marks, the 1885 Morgan is very common in both circulated and mint state condition. Retail values for circulated coins are $17.00-$26.00 The values for mint state coins start at $36.00 in MS-60 to $49.00 in MS-63 That's were most 1885 Morgan dollars grade out at.
The Carson City Mint was closed in 1893.
you can find it ABOVE the DO in dollar on the back
1890-S is a common date/mint Morgan, retail values for circulated coins are $17.00-$38.00 depending on grade.
It's a common date/mint Morgan dollar, values for circulated coins are $17.00-$26.00 Mint state coins sell at $30.00-$50.00
4-16-11>> A 1900-O Morgan dollar is common, circulated coins are $33.00-$40.00, typical Mint State coins are $50.00-$60.00.
No such thing as a 'mint stamp' in dealing with coins. They are called "Mintmarks" for Morgans, all are on the reverse of the coins. The easy thing to do to see one is, in your search box type in Morgan dollar mintmarks and click on images.
In 1885 the Philadelphia Mint struck 17,787,000 coins for general circulation and 930 Proof coins.
The 1921 Morgan is the most common of all and regardless of mint mark, circulated coins sell for $14.00-$25.00 Mint state coins sell between $30.00-$40.00 and as all ways value depends on the grade.