The 1881 Gold Half Eagle has a total weight of 8.24 grams and is appx. 90% gold and 10% other. Thus the gold content is 7.416 grams.
8.359 grams of 90% gold.
The weight if the coin is only 8.359 grams, but thr Actual Gold Weight (AGW)is .24187oz or 6.85689 grams of pure gold.
The standard composition for U.S. gold coins was 90% gold alloyed with 10% copper for hardness. Half-eagles ($5 pieces) weighed 8.24 grams when new, so 90% of that or about 7.42 grams was pure gold.
The weight of this coin is 8.359 grams and has .24187oz pure gold. This standard is for all Half Eagles from 1839 to 1929.
half ounce of gold
The diameter of US Gold coins dated 1915 are: Double Eagle 34mm/Eagle 27mm/Half Eagle 21.6mm/ Quarter Eagle 18mm
$20.00= Double Eagle/ $10.00= Eagle/ $5.00= Half Eagle/ $2.50= Quarter Eagle and $1.00 & $3.00 gold coins are referred to by the face value.
You must be in possession of a Liberty Head Half Eagle - the composition of this coin is: 0.9 gold and 0.1 copper; its weight is: 8.36 gms of which 0.241 oz of pure gold.
The US Double Eagle gold coin weighs 1.07 troy ounces.
The Actual Gold weight (AGW) is .24187oz of pure gold.
If your asking for the types of gold coins with eagle reverses, there are more than four. The denominational "Names" of the major gold coins with eagles are: Double Eagle-$20/ Eagle-$10/ Half Eagle-$5/ Quarter Eagle-$2.50
There are 0.48357 troy ounces of gold in the 1910 Half Eagle gold coin.