There's no US coin called an "old buck coin". What you have is a modern Presidential dollar worth face value only. The dates 1857-1861 are the years that James Buchanan served in office. The minting date 2010 is on the coin's edge.
a dollar
value of 1845 us five dollar coin
It's a common dollar coin that's face value
An 1861 $20 dollar gold coin is extremely rare. In very good condition it is worth $10,000-$40,000. In "Uncirculated" with narrower wings (you will have to ask an expert on this) they can fetch up to $250,000.
There's no US coin called an "old buck coin". What you have is a modern Presidential dollar worth face value only. The dates 1857-1861 are the years that James Buchanan served in office. The minting date 2010 is on the coin's edge.
a dollar
value of 1845 us five dollar coin
It's a common dollar coin that's face value
An 1861 $20 dollar gold coin is extremely rare. In very good condition it is worth $10,000-$40,000. In "Uncirculated" with narrower wings (you will have to ask an expert on this) they can fetch up to $250,000.
There was no fifty dollar US gold coin produced in 1940.
One dollar.
The value of an 1861C half eagle ($5 piece) is between $1,500 and $15,000. Condition greatly changes the value of the coin. You have a nice coin on your hands and I recommend sending to the NGC for certification. The value that I have found is according to the 2009 US coin digest (7th edition)
Check that coin again. The U.S. has never minted a two dollar coin.
$1.00
Approximately One dollar
Check that coin again. There was no such thing as a US dollar (or the United States) in 1756.