There is no gold in any one-cent coins, so what you probably have is a coin that was plated outside of the mint. Another possibility is that it was exposed to heat or some chemical that gave it a golden tone. As such, it's only worth face value.
Assuming you're referring to the tiny letters FG to the side of the Lincoln Memorial on the coin's back, please check your change. ALL cents have those initials; they belong to Frank Gasparro, who designed the reverse side of the coin.
Probably very little. Your coin is an ordinary 1974 US cent that was gold-plated and stamped with the state's name by a private company. It was sold as part of a novelty set of 50 "state pennies" but isn't an official US Mint product.
Some niche collectors will pay extra for a complete set in their original holder. By itself your coin is considered to be an altered piece with no numismatic value although it may have some interest as a conversation piece.
J.C. Penny
The value of your gold men's ring stamped BGE 925 is $13.28.
There was never a gold half penny issued by the U.S. Mint.
1 cent. It's plated. The US has never made a gold penny.
no such coin
The US has never made any gold one cent coins. It may look like gold (toning) or may have been gold plated, the counter stamped date or plating was not done by the US Mint and adds no value at all to the coin. The coin is worth one cent unless you find someone that wants it.
No such thing.
Modified coins have no collector value.
what is value of a south African 1978 fine gold Krugerrand coin
Sorry! It's worth a penny. It's only gold plated which doesn't add any value to the coin.
7-24-11>>> The US has never made any gold one cent coins. It may look like gold (toning) or may have been gold plated, the counter stamped date or plating was not done by the US Mint and adds no value at all to the coin. The coin is worth one cent unless you find someone that wants it.
My guess would be that it was plated with gold (or a gold-colored metal) after minting, and that it is thus worth about a penny.