Ahhh, now I remember what happens when you work at the Mint and start your day with a Martini. Or were you holding a martini at the same time you took that photo?
Talking about shock wave! I would venture to say that it may have been struck through grease using deteriorated Dies. Didn't a 5.2 magnitude earthquake hit Denver that year???? :rolling: Frank
I named this coin! Its Mel Tillis Jr. I have sent a picture of it to coppercoins.com and here is his responce. Best I can figure it was struck through a viscous material, like oil. I doubt anything like this could be from outside the mint. Unfortunately, however, I typically do not study errors or fakes of errors - outside my area of study since I am not interested in errors. I study die varieties, mainly...doubled dies, mintmark doubling, etc. That be known, I am not certain of my answer - just somewhat sure of it. I have seen one other coin like this one in my life, and it was a genuine error. Have a great day! Chuck
Chuck, Mike Diamond may have interest in your 1946-D Cent with the shakes and a diagnosis of the cause! The coin has doubling which appears somewhat similar to the doubling of the "5" on the 1995-P Cent of which he submitted an article to Coneca's ErrorScope. The article on the coin, came out in a recent ErrorScope issue. Frank
I am meeting with Ken Potter next weekend. He is interested in seeing this coin in person. The weight is correct, the diameter is correct which kind of kills the acid coin theory I guess. I will post what he tells me.
I do not see how the wave like impressions could be a result of either multiple strikes, strikes through rags or whatnot. Probably only the person responsible for it really knows, but to me it looks like it was heated to near ( not at ) melting point and then an extra burst of gas was applied. The secondary rim impression near the 5pm side of the obverse might indicate direction. Maybe someone playing in a inert gas ( so it didn't oxidize) welding class. JMHO
I met with Ken Potter today at a coin show in Detroit Michigan. His first thought is acid damage, He did weight the coin and its correct as is the size. Somebody must of put alot of effort into getting this coin to look the way it does. He suggested that Mike Diamond take a guess at it. I gather they know of one another. Nothing conclusive I guess. Still have it named Mel Tilliis!
This is a commonly encountered alteration. Although the wire brush scenario has been floated for years, there are never any scratches or abrasions. So I don't know exactly how it's done. But it's definitely not the product of a coinage press. These are sometimes called "rippled" coins. Alan Herbert covers rippled coins in his mint error book.
Thanks Mike. Alan Herbert. I think that Ken said he co-authored that book. Man I wish I could remember all of the stuff I was told at that show. Met some interesting people to say the least.
Got a copy of Alan Herbert 1978 Mint Errors and Varieties and he wrote: a rippled coin has concentric raised lines or "waves next to the design elements. The coins are produced bu holing them in a pair of plyers against a revolving wire brush which quickly cuts the ripples.
