What is the value of an 1899 silver dollar?

In 1899, the Morgan Silver Dollar was minted in Philadelphia, New Orleans and San Francisco. According to USA Coin Book, these are the prices for coins of each:

Philadelphia (no mint mark): In good condition, this coin is worth about $86 up to about $235 in MS60 mint condition. In MS65 brilliant uncirculated condition, it is worth about $900. Proof coins were minted here and are worth about $2,700 in PR63 choice uncirculated condition.

New Orleans (small "O" mint mark): In good condition, this coin is worth about $20 up to about $40 in MS60 mint condition. In MS65 brilliant uncirculated condition, it is worth about $165.

San Francisco (small "S" mint mark): In good condition, this coin is worth about $30 up to about $335 in MS60 mint condition. In MS65 brilliant uncirculated condition, it is worth about $1,650.

Assuming the coin is circulated and has no mintmark, the 1899 Morgan dollar is a better date of the series. Because most coins show heavy wear, for an accurate assessment of value the coin needs to be seen and graded. In general retail values for low grade coins are $95.00-$150.00, better grade are $160.00-$175.00 and coins showing almost no wear run from $190.00-$250.00. 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.