It means that the coin was minted at the San Fransisco mint. If a penny has a D, it means the coin was minted at the Denver mint. If it has no mintmark, it was minted at the Philadelphia mint.
It depends on the date, post new question.
It means that it was made at the San Francisco mint.
The S is the mint mark of the San Francisco mint, where the coin was made. that is not a question it is an answer
It is worth face value unless it has a S under the date.
Not enough information. Post a new question with its date, how worn it is, and whether there is a small S or D under the date.
If it has one , it's under the date
For a Lincoln cent, any mintmark is under the date on the obverse. Indian Head cents have the mintmark on the reverse under the wreath and can only be an "S" mintmark, on just on the 1908 & 1909 issues.
US cents minted in Philadelphia do not have a mintmark.
It's the year that the coin was minted. If you look under the date you can tell where it was minted, too: "D" = Denver Mint "S" = San Francisco No letter = Philadelphia
No 1972-S small date varieties are known.
1909 s vbd
Date? grade? is it US?