Wanted: Flan Flaw Experts

"IdesOfMarch01, asks: "Could this coin have patched/filled?"

Let's get this out of the way, I'm no expert. That said NO! Well yes, it could have been patched as there are very few absolutes. However, I have seen patched ancients and they do not look like this.

Therefore, IMO the red spot you circled is one type/color of corrosion we commonly see on ancients, colonials, tokens, medals, and cents made of copper alloy.

Take a look at the coins posted by @zumbly. Same thing in another form. Perhaps one of the chemists here can tell us how the chemical formula for "red" corrosion differs from "green patina."

 

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Multicolour corrosion on this sestertius:
and certainly not patched up

 

We probably do have many different definitions as I am an ignorant newbie and you are considerably more experienced. I say this respectfully as I am here to learn.

Funny you should say that. It did occur to me that my drachm might have been a "Z" coin but who knows? The sand patina came right off on my fingers but that happens sometimes.

I agree. I didn't want to post the original photo out of respect to the seller and besides I suspect I probably messed it up by cleaning it! It did originally look better. I can't possibly accuse anyone of "doctoring" a coin when so many coins change hands. I should have chosen my words more carefully in my original post.

My questions about flan flaws or die defects will have to wait I guess.

 

Liver spots on my Ancients... oh well...

Not too worried about calling out the chemists or the cavalry.

They are just COOL! Thanks @John Anthony and @Valentinian !


KYRENAICA Kyrene Æ25 9.6g 250 BCE Diademed Zeus-Ammon r - K-O-I-N-O-N; Silphium plant; monogram SNG Cop 1278 BMC 16-19


Sicily Syracuse AE Onkia 12-10mm 1.4g 425-415 BCE Arethusa - Octopus BMC 249


Sicily Kamarina AE 15mm 3.4g 420-405 BCE Athena Owl Lizard 3 dots Sear Gk 1063


Egypt Ptolemy II 285-274 BC AE 17mm Eagle Cornuc SV 762