
The provided search context does not contain the specific information required to locate the mint mark. Based on established numismatic knowledge, the mint mark on a 1900 silver dollar can be found on the reverse, or "tails," side of the coin.
Specifically, you should examine the area below the wreath that encircles the eagle. The mint mark, if present, is a small capital letter located just above the letters "D" and "O" in the word "DOLLAR." For the year 1900, there are three possibilities. A coin with an "O" mint mark was struck at the New Orleans Mint, while one with an "S" was struck at the San Francisco Mint. If no mint mark is visible in this location, the coin was produced at the Philadelphia Mint, which did not use a mint mark on these coins at the time.


