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What About A 40.6 ASE: Cool Or Fool?

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mdpmedia's Avatar
United States
3546 Posts
 Posted 10/01/2014  11:20 pm Show Profile   Bookmark this topic Add mdpmedia to your friends list Get a Link to this Message Number of Subscribers
Hello,

Do I have anything to worry about being that I just:

a) weighed my 1990 PROOF American 90% Silver Eagle at 31.30 g with a precisely calibrated scale: a 0.96% differential to the stated norm of 31.1 g?

b) measured the diameter of this same 1990 PROOF American 90% Silver Eagle at 40.60 mm with a precisely calibrated caliper: a 2.4% differential to the stated norm of 41.6 mm?

This ASE is packaged in an official looking purple velvet covered flip top metal box along with a COA.

Are we looking at a silver-plated lead coin here, simply one possessing acceptable deviations falling within publicly stated tolerance ranges, or some other disingenuous anomaly?

mdpmedia
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unholyroller's Avatar
United States
1903 Posts
 Posted 10/02/2014  01:04 am  Show Profile   Bookmark this reply Add unholyroller to your friends list Get a Link to this Reply
You are within acceptable tolerences as far as I can find
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Matteproof's Avatar
Korea, Republic Of
1881 Posts
 Posted 10/02/2014  03:05 am  Show Profile   Bookmark this reply Add Matteproof to your friends list Get a Link to this Reply
Within tolerance rates I'd say.
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CopperCastle's Avatar
United States
1132 Posts
 Posted 10/02/2014  03:13 am  Show Profile   Bookmark this reply Add CopperCastle to your friends list Get a Link to this Reply
I asked the same question not long ago concerning a Maple. Got the same answers too! Counterfeits are (typically) underweight. Extra silver for you!
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Conder101's Avatar
United States
17884 Posts
 Posted 10/02/2014  09:32 am  Show Profile   Bookmark this reply Add Conder101 to your friends list Get a Link to this Reply
The weight is within tolerance but not that diameter. A full mm smaller? In order to have the reeding it would have to expand into the 41.6 mm collar. At 40.6 mm it would only have traces of reeding or no reeding whatsoever.
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unholyroller's Avatar
United States
1903 Posts
 Posted 10/02/2014  11:14 am  Show Profile   Bookmark this reply Add unholyroller to your friends list Get a Link to this Reply
When measuring diameter it is critical on how you align you caliper. If you ran your caliper parallel to the reeding, you could have easily measured the distance between the "valley" of the reeding and gotten your smaller measurement. Always run your caliper fingers perpendicular to the reeding
Edited by unholyroller
10/02/2014 11:17 am
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mdpmedia's Avatar
United States
3546 Posts
 Posted 10/03/2014  02:30 am  Show Profile   Bookmark this reply Add mdpmedia to your friends list Get a Link to this Reply

Quote:
...caliper parallel to the reeding...


I always have measured my coins with the calipers perpendicular to the reeds and this was the case with the measurements initially done on this ASE.

Additionally, to ensure accurate repeatability I checked the diameter of a 2014 D Roosy dime with these same calipers also used on the ASE and it came back to be 17.90 mm: an exact match according to -

http://www.coincommunity.com/us_dim...oosevelt.asp

The 'valley between the reeding' comment, however, is something to be aware of in case one accidentally measures it this way and receives erroneous diameter results.

Now, I'm back to square one with an ASE weight that is allegedly within tolerances but with a diameter being 2.4% too low compared to the published US mint value.

So what would be the next investigative step to nail down this sucker since I'm unsure if a SG machine, for example, would reveal any significantly different results leading one to conclude that this coin is a counterfeit?
Rest in Peace
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jgfindring's Avatar
United States
1380 Posts
 Posted 10/03/2014  2:27 pm  Show Profile   Bookmark this reply Add jgfindring to your friends list Get a Link to this Reply
The fakes on ali-express are listing their diameter as 40 mm, weight 31 grams, so fake is possible.
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