Fortunately the initials "SBA" are enough to identify your coin as a Susan B. Anthony dollar. "FG" is not a mint mark - it's the monogram of the designer, Frank Gasparro.
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FG stands for Frank Gasparro, the coin's designer. I assume you have a small dollar coin with a picture of Susan B. Anthony on the front and an image of the Apollo Mission eagle on the back. This was a standard-issue coin at the time and is worth only face value, unless it's a Proof coin in its original holder.
The abbreviation of FG on a U.S. penny stands for the name of the man who designed the back part of the coin. His name was Frank Gasparro.
Those are the initials of Frank Gasparro, the US Mint engraver from the 1950s to the 1980s. He was responsible for the Lincoln Memorial reverse on the cent and the Eisenhower and Anthony dollar designs, among other coins.
Frank Gasparro
In 1959, the US Treasury bgan minting Lincoln Cents that were 0.950% copper; also, a new reverse design of the Lincoln Memorial was composed by Frank Gasparro (FG)!
on d2jsp it is worth about 300 fg
Only stars are on either side of the date on SBA coins. But if you mean the letters FG above and to the right, those are the initials of Frank Gasparro the designer of the coin.
From your description the coin is a common Susan B. Anthony dollar (1979-1981 & 1999) that is in circulation today. The FG is the designers monogram and adds nothing to the value of the coin. It's just a dollar coin, spend it.
FG stands for Frank Gasparro, the coin's designer. I assume you have a small dollar coin with a picture of Susan B. Anthony on the front and an image of the Apollo Mission eagle on the back. This was a standard-issue coin at the time and is worth only face value, unless it's a Proof coin in its original holder.
It is worth twice as much as half
7-31-11>>> Unfortunately only one of the of the Susan B. Anthony dollars made for general circulation is worth more than face value. The 1979 "P" Wide rim (near date) variety. Other than that, only Proof and collectors coins sold from the US Mint are worth more. None of the coins have been made from silver, if it's not one of the above types, just spend it. Note: The FG you see is the designers (Frank Gasparro) initials, all SBA coins have it.
Unless it is a proof coin or high-grade uncirculated certified by one of the major grading services, it is worth a dollar but I have seen some well-worn ones priced as high as $3 at flea markets. "FG" is the designer's initials and appears on the front and back of all the Ike dollars except the bicentennial reverse design.
FG stands for Frank Gasparro, who designed the back of the Eisenhower dollar. The coin, in circulated condition, is still worth one dollar.
D is the mint mark (Denver), FG is the designer's monogram (Frank Gasparro)
The FG stands for Frank Gasparro the designer of the reverse of the coin.
FG stands for the designer of this coin, Frank Gasparro.
FG are the initials for Frank Gasparro, who designed the Susan B. Anthony dollar.