In Very Fine condition, around $25. Extremely Fine retails for about $35, and uncirculated could be from $65 to several hundred dollars depending on how good the strike is. If your coin is uncirculated it would have to be appraised in person by a knowledgeable dealer or appraiser to get an accurate value.
More:The value of this 1892 Morgan Silver Dollar depends mostly on the condition of the coin minted from New Orleans. According to USA Coin Book, a coin in good condition is worth about $25 up to about $205 in MS60 mint condition. A coin in MS65 brilliant uncirculated grade is worth over $5,000The 1901-O Morgan dollar is common, the values for circulated coins are $23.00-$31.00 depending on condition.
August 21, 2009 The 1886-O Morgan Dollar in AU53 grade has a value of about $90.
The 1887-O Morgan dollar is common, circulated examples run from $25.00-$40.00 retail depending on condition.
Please look at the coin again and post new question. With the date of 1839 it can't be a Morgan dollar. The Morgan dollar was first issued in 1878.
Roughly $14 to $20 depending on condition.
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Numismedia shows an 1881-O deep mirror proof-like Morgan retailing for about $88.
The 1881-O (New Orleans) Morgan is common, retail values are $17.00-$26.00 for circulated examples.
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.
The 1885-O Morgan dollar is common, in general values are $32.00-$38.00 depending on grade.
As of August 2012 the value will be around 52 dollars.
As of August 2012 the value would be over 12,000 dollars.