It is a copper bullion coin and its value is close to whatever the copper market is.
The US never issued proof nickels struck in copper, only the standard curpronickel alloy used since 1866 except during WWII.
mining for copper
The "scientific name for copper" is copper. It means "copper". I can see how you might get confused... no, wait, I can't.If you mean the symbol Cu, it comes from the Latin cuprum, which means "copper."
Someone please help!!!!
Proof.
The coin is 90% silver & 10% copper.
1972-S proof halves were only struck in copper-nickel. As of 05/2009 retail prices are $1.25 to $1.50
As of 07/2010, half dollars for this year have only been made for Mint and Proof sets. A copper-nickel Mint Set version retails for 80¢ to a dollar. A copper-nickel Proof version retails for $3.50 to $8.00 depending on quality. A "Prestige Proof" silver version retails for $5.00 to $18.00 depending on quality.
extraordinary proof
U mean was Big Proof a Crip, because he's deceased. But no, Big Proof was not a Crip. Rest In Peace Big Proof.
It can mean "I have a test" or "I have a proof".