The coin needs to be seen for a accurate value. A 1899 Morgan dollar is a better date of the series. Circulated examples have current market values of $90.00- $240.00 depending on the actual grade of the coin. Values are a market average and only for coins in collectible condition, coins that are bent, corroded, scratched, used as jewelery or have been cleaned have far less value if any to a collector or dealer.
The 1892-S is a lower mintage (1,200,000) date/mint Morgan and is fairly common in the lower (G-4/F-12) circulated grades. For an accurate assessment of value the coin needs to be seen and graded. In general retail values for low grade coins are $35.00-$50.00, better grade are $100.00-$400.00 and coins showing almost no wear run from $1,000.00-$3,000.00 and more depending on the actual grade of the coin. Values are a market average and only for coins in collectible condition. Coins that are bent, corroded, scratched, used as jewelery or have been cleaned have far less value if any to a collector or dealer.
The 1893-S Morgan dollar is considered the key-date coin of the series. If you actually have one, I strongly suggest authentication. Most known circulated examples are in the Very Fine grade range (VF-20 to VF-35) with current market values of $5,000.00 to $7,000.00 depending on the actual grade.
Because you may have additional Morgans and know about mint marks and grading, here's a link to one of the better price guides that I've found:
Assuming the coin is circulated and has no mintmark, it's a slightly better date Morgan with retail value of $33.00-$44.00 depending on the actual grade of the coin.
Currently as of April 2012 a 1880 Morgan silver dollar in MS63 uncirculated condition is worth around 63 dollars.
Depends on condition
A 1884 Silver Dollar - aka - Morgan Dollar - is worth in good condition (G4): $18; if its mint state is MS60, the value rises to: $40.
Your 1896 Morgan dollar is worth about $10.00 to $30.00 in circulated condition.
A 1901-S Silver Dollar - aka - Morgan Dollar - is worth in a mint state of AU50: $225.00.
A 1902 Morgan still in collectible condition is worth about $33.00
A 1901 silver or dollar is also known as a Morgan Silver Dollar. It is ninety percent silver and usually worth at least forty dollars even in poor condition.
Retail values run from $200.00 to $500.00 in circulated condition.
$15.00 to $20.00 in circulated condition.
Currently a 1880 S Morgan silver dollar in MS65 uncirculated condition is worth $156.
They're all worth something due to their silver content, but anything beyond that varies by year and condition.
A 1921 Morgan dollar is worth about $25.00