Up till 1964 almost all proof coins were minted in Philadelphia. After the coin shortages of the mid-1960s the Mint decided that it was better to keep proof coin production separate from regular minting so that Philadelphia could use all of its facilities to strike circulation coins. The San Francisco Mint had been reactivated but was only minting small numbers of cents and nickels, so they were the obvious location to handle proofs. However, in 1999 Philadelphia struck proof $1 coins.
Also, some branch mints struck proof coins in the 19th century.
S means it was minted in san Francisco
Those letters are mintmarks that tell where the coin was minted. S means it was minted in the San Francisco Mint.
A cent specially minted using a highly polished die that gives the coin a mirror finish. Since 1968 most proof coins have been struck at San Francisco. Up to 1964 most were made in Philadelphia.
A "D" means that the penny was minted in Denver An "S" means that the penny was minted in San Francisco (note - only proof cents are now minted there) A penny without a mint mark was minted in Philadelphia
"D" indicates the coin was minted at the Denver Mint. "P" stands for Philadelphia, and "S" for San Francisco. Nickels made in Philadelphia from 1866 to late 1942 and from 1946 to 1979 don't have a "P". San Francisco minted nickels for circulation up till 1954, then again from 1968 to 1970. "S"-mint nickels are still made for inclusion in Proof Sets.
San Francisco, California
S means it was minted in san Francisco
Please post a new question with the coin's date. Circulation nickels were minted in San Francisco for nearly 50 years.
The mint is the place where the coin was made. In the US there are several. If the coin has a D next to the date, it was minted in Denver. S is for San Francisco.
Probably still one dollar. The only ones worth more are the silver or proof coins minted in San Francisco.
Philadelphia, Denver, San Francisco (proof only)
Current circulating U.S. coins are minted in Philadelphia and Denver, with collector proof coins minted in San Francisco.
Those letters are mintmarks that tell where the coin was minted. S means it was minted in the San Francisco Mint.
Value depends on if they are silver proof or clad proof. Post new question.
The mint mark for the 1970 US quarter dollar is located on the obverse [heads] side of the coin just to the right of the ribbon on George Washington's hair at his neck. If here is no letter there this means the coin was mnted in Philadelphia, Pennsylvania. If there is a "D" there this means the coin was minted at Denver, Colorado. If there is an "S" there this means the coin is a proof coin and was minted at the San Francisco, California mint.
Please look at the coin again and post new question. No one dollar gold coins were issued in 1879 from the San Francisco Mint.
Please check your coin again and post a new question. Indian head cents were only minted in San Francisco during 1908 and 1909.