Found a US Dime (1975 D) with some issues (listed below) and curious to see if there's any error value... 1) Lamination/Dirty Die on obverse & reverse(?) 2) Rim/Edge has consistent "pancake" effect on both sides(?) 3) (Edge retains typical "reeding") I'll add additional photos soon as I figure out the best settings on my scanner.
+1. I must agree; There just looks to be excessive wear and corrosion. I see no signs of any laminations on the obverse or reverse of the coin. Exactly where did you say you thought a lamination had taken place on the coin wildbill? And as far as the reeded adge goes, many coins of this age show no signs of a reeded edge from being constantly put through Coke machines, bubblegum machines, slot machines ect... -Brian
It may have been in a mild acidic (or corrosive) situation. Over time, the acid found (or wore) a crack in the outer surface and migrated between the coatings. But, this is only a guess and I'm not an expert.
I've always had a huge fascination with error coins, yet I'm no expert either. I'm just now catching up on the various error names, as well as the proper names of a coin's parts. By all means, please correct me if I'm wrong... does a coin struck w/a dirty die fall under "lamination" in the realm of coin errors or are they two separate error categories? Also, I was wrong regarding the "reed" issue (the reed is fine) I should have said "Rim" issue. So... 1) If the Dime has an acid/chemical issue on both sides... wouldn't the image(s) touched by the acid be equally effected? 2) The rim actually has a "pancake" effect on the obverse and reverse ... with each side having a very consistent overhang/lip you can feel with a fingernail. The overhang/pancake rim(s) are identical on the reverse and obverse making for a channel effect between both the reverse and obverse. (The reed is normal and not damage between the overhanging edges from both the obverse & reverse). The dime itself shows no image distortion or damage from being squashed/stretched as if it had been hit w/hammer, etc. Years ago I found a website which described a similar "overhanging" rim(s) error in great detail but am having trouble locating the site. I'll try to post another photo of the rim using a camera vs a scanner soon as I can figure out how to get a good, detailed close-up.
Again, I am no expert, but I can see a situation where this result could happen. It may be the alloy had an impurity in it, something more located on the reverse, maybe a mild solvent? Over time the impurity slowly corroded the coin causing this effect. I should add: I believe, after examining the reverse more closely, that there probably was SOMEthing between the coin and die. The edges along the more damaged parts appear to have raised ridges, and the damaged areas themselves appear to be the original surface of the metal. I really hope an expert will view this who knows more about errors than I, this could be quite a find!
I will not grade. As stated, it has seen a bunch of acid. Not sure what happened earlier, but after the acid, it is worth 10¢
Okay... I only stated an interest in grading... I don't recall "requesting" a grading from anyone in particular??? But I digress..."if" acids to blame vs. a dirty die... how 'bout the pancaked rim(s) issue... what's the most likely cause?
Rims on any coins can easily wear down just from regular circulation. Like I previously stated, it is not uncommon for a coin to have no rim. -Brian
I could also be from a small piece of greasy cloth or other item that was between the die and coin surface. And I still say the damaged area looks like the original surface. I know little about any sub-surface cause that might cause this, but it may be possible the surface DID have some kind of solvent on it that dissolved part of the interior of the coin but left the surface relatively unchanged. Keep searching for answers wildbill. I tend to believe this is an error coin because I doubt the surface would still be present after a solvent came into contact with it.
