A 1999 nickel with copper on the back is not considered rare. The standard composition of nickels includes a core of pure copper and a nickel coating, so seeing copper on the back is typical. If you meant a specific error coin or variation, please clarify, as that could potentially change its rarity and value.
Great - you have a rare Copper-Nickel 3 Cent piece - a 1881 coin in fine condition is worth: $30.00.
What you have is probably a normal alloy nickel that has discolored over time (the coin actually contains 75% copper). A true mint error where the nickel was minted on an incorrect planchet or blank could be worth from maybe $20-100 on up, depending on condition, but these are very rare and must be authenticated by a reputable grading service such as NGC or PCGS.
Half dollars from 1965-69 contain a small amount of silver and are worth about $2.50 All other denominations dated 1965 are either copper or copper-nickel and are only worth their face values. None are rare.
These coins are not rare. They're made of copper-nickel like dimes and quarters, rather than silver. Unless they are uncirculated or proof they are worth $1.
Unless the coin has an "S" mintmark and was found in a US mint set, it is copper and nickel, not a rare issue and is worth only $1.
She is pictured on $1 coins made from 1979 till 1981 and again in 1999. They are made out of copper and nickel. They have no extra value and are not rare.
A coin of this nature must be seen to determine why it appears to be made of copper instead of the copper/nickel other nickels are made of. I suggest you take it to a coin shop and have it appraised.
Not really, given that when you look at it from the opposite direction the date is 1999.
Great - you have a rare Copper-Nickel 3 Cent piece - a 1881 coin in fine condition is worth: $30.00.
Yes, it is extremely rare to find a copper quarter as U.S. quarters have been made of a copper-nickel alloy since 1965. Prior to that, quarters were made of 90% silver until 1964. If you have a quarter that appears to be copper, it may be the result of a mint error or some form of altered coin.
rare
Cobalt is relatively rare in the Earth's crust, with an average abundance of about 25 parts per million. It is typically found in association with nickel and other metals, primarily as a byproduct of nickel and copper mining.
It's not rare, millions are still in circulation today, just spend it.
It's not a "buffalo head" nickel and it's not made of copper. The coin shows the entire animal (actually a bison) and all were struck in an alloy of 25% nickel and 75% copper. If it appears to be copper it was probably either plated or suffered discoloration from exposure to heat or chemicals.
What you have is probably a normal alloy nickel that has discolored over time (the coin actually contains 75% copper). A true mint error where the nickel was minted on an incorrect planchet or blank could be worth from maybe $20-100 on up, depending on condition, but these are very rare and must be authenticated by a reputable grading service such as NGC or PCGS.
common
common