Your coin is almost certainly plated. No silver halves were made in 1972.
From 1971 to 1974 the U.S. Mint issued some 40% silver Eisenhower dollars and they issued a 40% silver half dollar in 1976 for the Bicentennial, but not all 1976 half dollars have silver. From 1965 to 1970 half dollars had 40% silver. Some silver proof sets had silver half dollars beginning in 1992.
Do you mean a "whole" dollar or a dollar with a hole in it? If you mean a $1 coin there are 2 possibilities: > If it has an S mint mark below the picture of President Eisenhower, it may be a 40% silver coin minted for collectors. In that case it's worth about $5. > If it doesn't have an S mint mark (none, or a D instead) it's a normal copper-nickel dollar that's been plated. In that case it's only worth $1. FWIW, no U.S circulation coins were ever made of solid silver because it would have been too soft to stand up to being in change. All silver coins dated 1964 and earlier were made of an alloy of silver and copper.
Although still called a silver dollar, it's not a silver dollar, just a dollar, because it's made of the same copper-nickel alloy as dimes, quarters, and halves. The copper you see along the rim of the coin is the copper core and it shows when the coin blank is stamped out of the sheet of metal. That means it's only worth about $1.25 in circulated condition. If it's an uncirculated coin in its original mint package it would be worth about $2.
The U.S.Mint has never issued a copper dollar.
To the left of copper appear nickel.
Nickel is placed on the left of copper.
Copper oxide appears as a black or dark brown powder after copper has burned.
1898 copper ten dollar of us dollar?
a dollar bill
Copper and nickel.
$1. I'm assuming you mean an Eisenhower dollar with a copper band on the reeding? That is because the Eisenhower dollar was struck in copper-nickel and not silver, as such it is only worth $1.
If it's a copy, then it's not worth much of anything. It's probably silver-plated copper or zinc.
62 copper dollar coins