As of today 2-3-10 value just for the gold is $50.00, if the coin is in collectible condition retail for circulated coins is $178.00-$270.00 depending on grade. So no it's not worthless.
If underneath his portrait is says "In God We Trust 13th President" it is a Fillmore dollar, part of the Presidential Dollars series, and it is worth one dollar. If it just says "Millard Fillmore 1853" (the last year of his presidency) is is a commemorative trinket, and essentially worthless.
The Actual Gold Weight (AGW) of this coin is .04837oz of pure gold.
If you are asking about a small (13mm) 1853 Liberty Head gold dollar, the mintmarks are on the reverse under the wreath.
The 1853 one dollar gold coin, known as the "Type 1" or "Liberty Head" gold dollar, contains approximately 1.67 grams (0.04837 troy ounces) of gold. The coin has a total weight of 1.672 grams and is composed of 90% gold and 10% copper. This composition reflects the standard for U.S. gold coins during that era.
5000.00
The U.S. does not issue "Tallar" coins. But if you're asking about a 1 dollar gold coin, just type in 1853 U.S. Gold Dollar in your search box and click on images. This will bring up pictures of the coin.
Melt value is $62.62
The Philadelphia issue of the 1853 Liberty Head $1 gold coin is the highest mintage and most common date of the entire series of US one dollar gold coins. Retail values of circulated coins are $126.00-$270.00 and Mint State examples are $280.00-$340.00.
The 1853 one dollar gold coin, also known as the Liberty Head design, has a diameter of approximately 13 millimeters (0.51 inches) and weighs about 1.672 grams. This coin is composed of 90% gold and 10% copper, making it part of the United States' historical gold coinage. Its small size and gold content make it a notable collectible among numismatists.
$240 - $72,000 depending upon the mint mark and the condition of the coin.
Look at the edge of the coin you will see the date 2010. It's just one of the Presidential dollar coins released this year. None of these coins are gold or are worth more than one dollar.
It's worth one dollar.