It depends on what date it is, post new question
Based on 2010 values a US 1947 Walking Liberty Half Dollar in regular circulated condition would be worth $7-9 for either mint. This coin in Extra Fine condition $10, About Uncirculated $25, Uncirculated $45-60
It's a presidential dollar, minted in 2010, and it's worth one dollar.
The gold is plating that was added later by a private company. It destroys any collector value the coin had, but as of 01/2010 it's still worth about $7-8 for its silver content.
Most halves from the WWII era are common among collectors. Anything that shows evidence of wear will mostly be worth its silver value, around $7-8 as of 03/2010.
One dollar.
One dollar.
about a dollar because it is a dollar
Typically those types of coins are generally worth market value of gold. The 50 dollar coin is 1 troy ounce of gold, so therefore around $1400 as of late December of 2010.
Without knowing what to compare it against, it was worth one dollar.
What you presumably have is a James Buchanan presidential dollar coin. It was minted in 2010 and is worth one dollar.
It's gold plated, but not gold. The good news is that 1942 is a common date for Walking Liberty halves so you can still sell it for its melt value of $5-7 as of 07/2010. In any case, a gold half dollar would have been about the diameter of a pencil eraser, and no gold coins were made for circulation after the US went off the gold standard in 1933.
A 2010 U.S. nickel is worth exactly five cents.