The 1886-S Morgan Dollar is a better date/mint coin of the series, but it is common and average retail values per grade for circulated coins are: G-4 $29/VG-8 $41/F-12 $54/VF-20 $76/EF-40 $89/AU-50 $130/AU-53 $150/AU-55 $155/AU-58 $204
With no mint mark or an "O" on the back, about $17-20 With an "S", $30 if worn, up to about $70 if only slight wear is visible.
Value is $17.00-$26.00
One dollar.
If the coin is a 1996-S Silver Proof Kennedy Half dollar, average retail value is $12.00 to $15.00
Currently a 1880 S Morgan silver dollar in MS65 uncirculated condition is worth $156.
Check the denomination again, the last US silver dollar was made in 1935.
42cents
About $27.
A 2002-S silver proof Kennedy has an average retail value of $18.00.
The US did not mint any silver dollars in 1830.
A 1901-S Silver Dollar - aka - Morgan Dollar - is worth in a mint state of AU50: $225.00.
The silver proof 1997-S Kennedy half dollar has an current average value of $15.50.