A 1887 U.S. gold coin, specifically the Liberty Head design, weighs approximately 33.44 grams. This coin contains 1 ounce (31.1 grams) of pure gold and is composed of 90% gold and 10% copper. The total weight accounts for the alloy and design of the coin.
1.672 grams
8.1 grams.
The weight is 8.1 grams.
An 1891 dollar coin is a Morgan dollar, and therefore should weigh 26.73 grams. (This is the official weight when issued from the mint. If the coin was substantially circulated, it may weigh less due to wear.)
An 1857 Indian Head gold one dollar coin should weigh 1.672 grams.
All US 20 Dollar gold coins have a weight of 33.436 grams.
One method to determine the authenticity is to weigh the coin. A genuine U.S. silver dollar should weigh 26.73 grams.
A circulating copper-clad Ike dollar weighs 22.68 grams (or slightly less if it's visibly worn).
It's a Half Dollar NOT a dollar coin. The coin weighs 12.50 grams and contains .36169oz of pure silver.
The copper-nickel coins weigh 22.68 grams. The 40% silver coins weigh 24.59 grams.
There is no such thing as an Eisenhower half dollar, only an Eisenhower dollar coin.
All US 20 Dollar gold coins have a weight of 33.436 grams.