What is the value of a 1996 walking liberty dollar coin?

Thew US Mint in 1996 produced the American Eagle Silver Bullion Dollar. It was minted in three locations: San Francisco ("S"); West Point ("W"); and, Phillie ("P"). The 1996 S and W were minted in a MS-65 and are worth $70.00; the "S" coin was minted in a proof state (PF-65) and is worth: $75.00.