There's no such coin. The U.S. didn't exist as an independent country in 1776 (still fighting a little war called the Revolution, right?) and in any case the first $20 coins weren't struck by the Mint until 1849. You either have a fantasy piece, a privately-made bullion piece, or maybe even a fake. Unfortunately it's not possible to say which without an in-person examination, so I'd recommend taking it to a local dealer or appraiser.
The coin is a common bicentennial Eisenhower dollar that MAY have been gold plated or just toned a gold color, the coin is face value.
The first US $10 gold coin was made in 1795 so look at the coin again and post new question.
The bicentennial dollar coin is still worth one dollar.
The bicentennial dollar is a common coin, still worth one dollar.
1 dollar
$600.00
It's a common coin, still worth one dollar.
It's still worth one dollar.
One dollar, and the coin contains no gold.
No U.S. One Dollar coins dated 1776 exist. The first U.S. silver dollar made is dated 1794. If the coin has a duel date of 1776/1976 it is a bicentennial Eisenhower dollar that contains no silver and is only face value.
No U.S. One Dollar coins dated 1776 exist. The first U.S. silver dollar made is dated 1794. If the coin has a duel date of 1776/1976 it is a bicentennial Eisenhower dollar that contains no silver and is only face value.
Look again. The date says 1776-1976. It's a Bicentennial coin worth 50 cents