Chances are, you have a 1947 Swiss 20 Francs coin. These coins are common and worth scrap gold. They contain 0.1867 of a troy ounce of gold and are 90% pure. And worth about $300 in gold melt at the time of writing.
300
A 1943 steel penny is worth just that 1cent.
With silver at $27.10 per ounce. War nickels are worth about $1.50.
Most are valued at 5 to 10 cents, the 1943 steel Lincolns are very common.
It is worth 10/24 of an ounce of pure 24 k gold
The current price for an ounce of gold is: $1,591.00 A tenth of an ounce of gold is: $159.10
Gold is currently worth $1106.70 per ounce, while silver is worth $16.96 per ounce.
$20.67
In 1853, a Troy ounce of gold was worth $20.67. It retained this value until 1934 when it was raised to $35.00 an ounce.
As of November 21 2011 one troy ounce of gold is worth £1086.39 ($1702.90 US Dollars)
Numismatically, the 1943 Mercury Dime is fairly common, and sio would need to be in one of the higher uncirculated grades to be worth much over its "melt value" - plated (even with gold), it will never be worth more than the value of its silver. With silver at $30 per troy ounce (as of February 2011), it is worth about US$2.15.
The gold market is over $1,000 an ounce.
12k gold would be worth about $487.50 per ounce.
$20.63 a troy ounce.
100.00
an ounce of gold is worth over 1500 dollars