[...] nowhere close to 4.9 grams, its roughly the size of a penny. Would this mean its a smaller denomination or what? If real, with the hole drilled in it it takes away nearly all value right? What would be the value about if it was in good shape and do you know why its domed like it is?
In Gordian's time a "smaller"
denomination would be a
denarius, and would be marked by a laurel leaf
wreath.
The
radiate crown is here as a mark of
denomination indicating "double" value over
denarius, but it was really closer to 1.5.
There was some variance in
weight.
I can't 100% confirm, from these photos, if your item is a
cast copy, but it does not inspire confidence.
However, let us be generous and assume that it isn't:
1) Looks like the edges have been filed away to fit the object into a
jewelry mount.
That'd account for some of the missing
weight.
2) It's slightly concave also because someone banged it with a hammer to fit into a
jewelry mount, or intended to do so.
Holing always does take away some value off a coin, but does not reduce it to nearly nothing, as it would with a modern coin.
Given the condition of the item, uncertainty of authenticity, and the hole — it's not a treasure.
The coin which sold at
auction, cited above by Ralf, was around ~400 USD. But it is also a scarcer variety, and in decent grade.
Specialized
Gordian collectors will have to say why it brought such a
price, which is rather unusual for one of
his antoniniani, which usually go for 30-50 USD ballpark.
G/<
.
Fake Coins and Notorious Fake Sellers
