The 1972 American Revolution Bicentennial coin is made from brass. There are versions of the coin that are somewhat valuable.
The US Mint did not issue a bicentennial coin in 1972. Pleas examine the coin and submit a new question giving more details concerning it.
Any American coinage is worth the face value minted on it however different other factors may vary it's worth and to whom it is valueable. Bluntly a 1972 fifty cents piece is worth 50 cents. But the coin does have value to precious metal investors, if it has silver in it which I believe no 1972 5o cent piece (US) did. To a coin collector a numismatist, depending upon the condition and the mint where the coin was minted would affect the value. The value of the coin will flunctuate over time as markets predict its worth for metal value and numismatic value. But it is always worth at least 50 cents US.
There is no such coin. The US mint does not a coin out of only one metal.
All US coins dated 1972 have "LIBERTY" on them, which one? Post new question.
A 1972 Washington quarter is just a quarter, many are still in circulation.
The coin is still in circulation today and has face value only
A US 5-cent coin is 75% copper and 25% nickel.
No, there have been many US dollar coins struck before and after 1972. However, the US Mint did make a dollar coin in 1972 (it was the second year for the Eisenhower Dollar)
If you mean a coin? The 1972 dollar coin is an Eisenhower dollar.
Please look at the coin again and post new question, the only possible mintmarks for a 1972 US Eisenhower dollar is a D or S
If it's not proof or a very high mint state coin, it's face value