I don't have any myself.
All Mint issued 2001 American Buffalo Commemorative Silver Dollars were struck in 90% silver.
The US Mint did not issue a buffalo coin in 1970. Please examine your coin and submit a new question with additional information concerning it.
The silver one dollar American Buffalo coins are all dated 2001. This is the only year the U.S. Mint made this coin. You may have a 1 ounce "Silver Round" dated 2002 made to look like the official coin but it is not a U.S. Mint product. Take it to a local buyer of scrap gold & silver for an idea of value.
No. The U.S. Mint only struck the American Buffalo silver dollar in 2001.
The U.S. Mint has never made a $10 silver coin. If you are asking about NORFED silver rounds, they are not genuine United States Mint bullion coins and they are not legal tender. The value is only for the silver they contain.
One can purchase an American Buffalo gold coin from the 'APMEX' website. One can also buy them from 'Amazon', 'eBay' and 'United States Mint' for around $1,500.
The US Mint was not producing any coins with a buffalo on them in 1812.
The American Buffalo Gold coin was first offered for sale by The United States Mint on June 22, 2006. The coin is a Modified version of James Earle Fraser's design for the Indian Head Nickel.
silver
This is not a US Mint issue coin it's a novelty coin of some type. It could have value if it's made from silver. Look for the marking of .999 fine silver on the coin. If you find it, it's made of silver and does have some value.
The US mint never made cents out of silver. Most likely your coin has post-mint damage such as silver or chrome plating that makes your coin appear silver.
Check under the "FIVE CENTS" on the reverse of the coin. Possible mint marks are:No mint mark = PhiladelphiaD = DenverS = San FranciscoAlso note that the coin is called either a Buffalo Nickel or Indian Head Nickel, but not "buffalo head". After all, it shows the whole buffalo, not just its head!