1/3 stater Lydia - authentic?

Hi,

I kindly ask you to evaluate the authenticity of the coin.

14.9 mm, 3.02 g

I am wondering about the unusual surface of the coin, is it corrosion or is it the action of some acid?

Thank you,

Robert

 

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idk....very porous ain't it?!..

 

@Robichari Is it your coin? If so, then does it have a casting seam on the edge, or file marks on the edge?
The porosity seems unusual. It could be the result of corrosion. Perhaps the coin had a very thick tone, and then the coin was harshly cleaned. Or, the porosity could be the result, of being a cast fake. Or, the porosity, could have happened, because the coin originally had a lot of impurities, which dissolved over the centuries. I don't know. I'm not an expert, in this area.
From the photos, I don't know, if the coin is authentic, or fake. I'm not an expert, in this type of coin.

 

@sand Thank you for your, i add a photos of edge.

 

Yes it is mine coin

 

It is genuine, an highly porous coin dipped in acid.

 

Is it silver?

Ross G.

 

Yes it is silver

 

Checking comparables at CNG, many have significant porosity - not quite as heavy as yours but similar. Also, on your coin I see what look like traces of purplish horn silver. I don't know enough about this series to either authenticate or condemn your coin but I think these observations bode well.

 

Yeah, salt water or salty soil. As an illustration, maybe it was lost near the sea where salt deposits in the soil. That would also cause thus kind of reaction. Everything I see says authentic, just unfortunate soil conditions where it was lost over 2 millenia ago.

 

Thank you!
I am glad that the coin is genuine. Despite weak condition, it has a lot of historical value for me. I attach photos of the coin in the rays of the sun.

Greetings,

Robert