1887 is a common date Morgan retail values are $17.00-$26.00 for circulated coins. Uncirculated start at $30.00
1887 is not considered a rare date for Morgan dollars. In MS-62 grade, it is currently worth about $30.00
The coin is worth about $14.00 as of today just for the silver, if it's in a collectible circulated condition, value is $17.00-$26.00. For Morgan dollars 1887 is a very common year.
There were no silver dollars struck at Carson City in 1887. Any 1887 dollar with a CC mint mark is a counterfeit.
Assuming you are asking about a 1887 Morgan silver dollar. Circulated coins are valued at $30.00-$40.00.
Assuming the coin is circulated and has no mintmark, the 1887 Morgan is a high mintage common date, retail values are $30.00-$39.00 depending on the grade of the coin.
As of 10/2008 an 1896 Morgan/Liberty Head Silver Dollar minted in Philadelphia in fine condition is worth $18.00, uncirculated is worth $34.00, proof is worth $1,300.00 It is a fairly common date - it would be worth $17 - $22 in circulated condition, and perhaps $35 - $70 in uncirculated condition (depending on just how uncirculated it was - you'd need a dealer or other specialist to judge the condition for you).
Assuming the coin is circulated and has no mintmark, the 1887 Morgan is a high mintage common date, retail values are $17.00-$26.00 depending on the grade of the coin.
A very common Morgan retail value in MS-60 $34.00/ MS-63 $58.00/MS-65 $156.00
A 1887 Morgan Silver Dollar in fine condition (F12) is worth: $23.00. In a mint state of MS60, the value rises to: $40.00
It's common, retail values are $17.00-$26.00 for circulated coins. A great mint state example can be had for about $35.00
7-30-11>>> Assuming the coin is circulated, the 1887-O Morgan is a common coin, current average values are $37.00-$45.00
Sorry no Carson City mint marks in 1887 on a Morgan dollar. Look at the coin again.