Notice the reverse of coin #1, and the obverse of coin #2. Observe how the plating did not bond to either in those areas leaving similar circular-shaped voids with almost the same circumference and area. Any thoughts on this? Coin #1 And coin #2
How would you localize the solution to do that? Plus, both the exposed zinc areas have original luster. That would be lost if chemically stripped.
I'v never seen anything quite like that before. Interesting and I would like to know how that occurred bug I have no ideas on what happened.
Reminds me of some article I read.. But I can't remember if it was Fred Weinberg or Mike Diamond who wrote it.. They called it Bullseye Plating error.
Imho, Looks interestingly like painters pennies. It looks like the 1985 was the bottom cent and the 1984 was ontop of the 1985 cent with paint in between. Then someone used paint thinner to clean it but failed But what do I know I never seen something like this. It does have white green and a couple little red drops. It’s neat.
Could this be due to planchets sticking together during the plating process? Just a speculative guess because I don't know the details of the high volume plating process used by the mint vendors
I looked for Bullseye Plating and most of the articles I found were primarily discussing toning issues (artificial vs natural). Couldn't locate an error listed as Bullseye Plating. Maybe someone with a more in-depth search engine will prevail. I found an Unplated Zinc Cents article: https://conecaonline.org/unplated-lincolns/ and another quoting @Fred Weinberg: https://markedmoney.tech/2019-cent-partial-plating-error/ and a very old one from Mike Diamond: https://www.coinworld.com/news/prec...ot-an-the-error-collectors-clearinghouse.html
What likely caused this in my opinion are coins that are overlapping and stuck together. Clients of mine have to plate/outside coat things and routinely, something comes back with incomplete coverage. Especially if parts can stack together, you are more likely to get spots without coverage. Hydro lock, air pocket, or machine oil that eventually gets wiped off are the usual culprits.
