Weight of US commemorative gold coins
 

I am confused. The red book states: "Standars for weight and size are the same as previous half eagle gold coins." They list half-eagles as .24187 oz pure gold. That make them under a 1/4 qunce.
The COA that just came with my 1988 U S Olympic proof five dollar gold shows weight as .2687 troy ounce. Obviously that makes them over 1/4 ounce. Can anyone make sense out of this for me? Thanks!

Re: Weight of US commemorative gold coins
 

The coin isn't .999 so it has .25 of gold + the lil extra from whatever other metal it was made with. When it talks about the old style half eagles those never were a full .250 to my knowledge.


EDIT: Actually it looks like the older half eagles were 90% gold and weighed more than .250 oz. 8.39 grams each.

Re: Weight of US commemorative gold coins
 

.24187 AGW alloyed with silver and copper for the total weight.

Re: Weight of US commemorative gold coins
 

You are correct.

Maranatha,

:smile:

Re: Weight of US commemorative gold coins
 

Half-eagles were 0.900 fine.

0.2687 ozt of 0.900 gold = 0.24187 ozt pure gold

Re: Weight of US commemorative gold coins
 

OK! Thank you so much. I bid based on .24187 and was surprised the COA listed .2687.
Why would they do that? Appreciate all your responses.

Re: Weight of US commemorative gold coins
 

Buy the way, Welcome.

On this site, we've got your back.

Learn and pass it on, this way you'll be able to watch others (and our) backs someday.

Play it forward!

Maranatha,

:smile: