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All Forums Category: General Numismatic Forums Forum: Main Coin Forum

Weight Of Circulated Gold Coins

 
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Author Previous TopicReplies: 3 / Views: 676Next Topic  
Ynnad
Valued Member

United States
72 Posts
 Posted 02/11/2023  10:21 am Show Profile   Bookmark this topic Add Ynnad to your friends list Get a Link to this Message
I am examining an accumulation that a co-worker might sell to me. It includes an 1847 U.S. Ten Dollar gold coin. The coin appears genuine, is non-magnetic, does not react with concentrated nitric acid, and "rings" when dropped on a hard surface. The weight of an uncirculated coin of this type should be 16.718 g. This coin would grade Very Fine. It weighs 16.4692 g. Is a 1.5 % reduction in weight typical for this coin or should I be suspicious?
MetalEarth
Valued Member
United States
109 Posts
 Posted 02/11/2023  2:10 pm  Show Profile   Bookmark this reply Add MetalEarth to your friends list Get a Link to this Reply
U.S. $10.00 Liberty Specifications:

Size: 0.4838 Ounces
Any chance to see pics? Interesting coins. I tried to find tolerances of weight, but didn't have luck.

Denomination: 10 Dollars

Gross Weight: 16.72 grams, 0.5376 oz. Troy
Actual Gold Weight: 15.04 grams, 0.4838 oz. Troy
Fineness/Composition: .900 Gold, 21.6 Karat
Diameter: 27.00 MM, 1.063 Inches
Thickness: 2.0 MM, 0.078 Inches
Specific Gravity: 17.17
Pertinax
Pillar of the Community
United Kingdom
1946 Posts
 Posted 02/11/2023  4:21 pm  Show Profile   Bookmark this reply Add Pertinax to your friends list Get a Link to this Reply
I don't know.

Recently, I inspected a group of Victorian young head silver sixpences all with the same date and all in mint condition.

Their weight varied between 0.27% less than the standard specified weight and 0.79% more.

A Royal Mint official said that was within the tolerance permitted.
Pertinax
Pillar of the Community
United Kingdom
1946 Posts
 Posted 02/11/2023  4:24 pm  Show Profile   Bookmark this reply Add Pertinax to your friends list Get a Link to this Reply
Victorian silver threepences weigh on average 3.1% less in Fine condition than in mint condition, and in VG condition, 8.75% less than mint condition.
  Previous TopicReplies: 3 / Views: 676Next Topic  
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