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I'm Unsure Whether This Roman Coin Is Authentic.

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awallin01's Avatar
United Kingdom
477 Posts
 Posted 01/04/2023  1:18 pm Show Profile   Bookmark this topic Add awallin01 to your friends list Get a Link to this Message Number of Subscribers
Hi, I previously posted this coin to understand who was on it and the type of coin. That much was answered, I then wanted to check the size/weight etc as the finished condition isn't like my others where the lines on the metal move from the centre to the edge.
The diameter is 17mm, which is spot on. However the weight is 2.45g, I think the average for a Marcus Aurelius Denarius is 3.7g. I know there may be fluctuation in weight because of how they used to create the coins, but this variance seems high.
I'm seeking your opinions and knowledge to put my mind at rest please.

I'm-Unsure-Whether-This-Roman-Coin-Is-Authentic.
I'm-Unsure-Whether-This-Roman-Coin-Is-Authentic.
I'm-Unsure-Whether-This-Roman-Coin-Is-Authentic.
I'm-Unsure-Whether-This-Roman-Coin-Is-Authentic.
Valued Member
awallin01's Avatar
United Kingdom
477 Posts
 Posted 01/04/2023  1:20 pm  Show Profile   Bookmark this reply Add awallin01 to your friends list Get a Link to this Reply
Marcus Aurelius Denarius. AVRELIVS CAESAR AVG PII F, bare head right / COS II, Spes walking left, holding flower and raising hem of robe. RSC 102; Sear 4783

On wildwinds this looks like the closet match.
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Sap's Avatar
Australia
16816 Posts
 Posted 01/04/2023  5:39 pm  Show Profile   Bookmark this reply Add Sap to your friends list Get a Link to this Reply
The rim looks very unnaturally right-angled for an ancient Roman coin. I think the edge has been filed, perhaps in an attempt to make it rounder, perhaps to make it fit into jewellery.

Losing some metal to the filing would explain part of the difference in weight. I'm also seeing evidence of corrosion, so a harsh cleaning may have also caused some weight reduction.

So, my conclusion is that it's a genuine coin, but "tampered with", and thus less desirable to collectors.
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis
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JohnConduitt's Avatar
United Kingdom
725 Posts
 Posted 01/04/2023  5:56 pm  Show Profile   Bookmark this reply Add JohnConduitt to your friends list Get a Link to this Reply
On Ocre the average is 3.2g http://numismatics.org/ocre/id/ric.3.ant.429A

It's still very light, although it is porous and may have lost weight. The edge is smooth. Maybe filed for jewellery?
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JohnConduitt's Avatar
United Kingdom
725 Posts
 Posted 01/04/2023  5:58 pm  Show Profile   Bookmark this reply Add JohnConduitt to your friends list Get a Link to this Reply
Ok yes same as Sap
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