Revisiting after several years...still have my coin sitting in a drawer. Looking for feedback as to whether it's a piece that is sought after by collectors?
Is it the same size as a dime? What does it weigh? Better photos of both sides could help. Very often these things are faked. Hard to tell anything with just that photo. A close up of the edge where there is no rim as well as obverse and reverse.
Looks to me like a penny struck on a dime. Only thing that looks odd to me is it should be clad, not copper. Very interesting piece.
@mikediamond already told her it was legit years ago. https://www.cointalk.com/threads/double-denomination.234731/ @nancyb post it in the for sell(sale) section here with how much you want for it. Then you will know if anyone is interested or not.
So looking at the original thread, it is a cent that was struck on an already struck dime. How does an already struck dime get into the cent striking machine? It doesn't seem like an accident to me. I would have the mint workers leave all their change in their lockers then walk through metal detectors and never have pocket coins on the production floor.
@nancyb I'm wondering why you didn't take the advice given when you first posted the coin in August 2013 and have it verified? I believe it would add to the value of the coin if it was. Error coins such as yours, are always difficult to put a price on as it is worth what someone is willing to pay. This site has a value only for a uncirculated one. https://minterrornews.com/priceguidedoubledenom.html of $750. Good luck with it.
They already do that. As for how it could happen, two ways I can think of. Press was used to strike diems and one got lodge in the machine someplace, then the press was switched to cents. The lodged dime came loose and made its way to the coining chamber. More likely scenario. At that time planchets and struck coins were wheeled around in tote bins. These bins were used for both planchets and struck coins interchangeably as needed. They also have raised seams inside and a sliding door for allowing the planchets/coins to exit the bin. Coins/planchets would sometimes get caught in these seams/door track. (I have seen pictures of an "empty" bin that had planchets caught in those areas.) Use a bin for struck dimes, a couple get struck. Then use the same bin to transport cent planchets and the dime(s)get knocked loose and mixed in with the cent planchets. The dime being slightly smaller than the cent planchet will pass through the same feeding mechanisms and feeding tubes, The feed finger will then take that struck dime and deliver it to the coining chamber just like it would a cent planchet. A single cent on dime mixed in with thousands of struck cents is not likely to be noticed, especially if it is struck and then thousands of regular cents are dumped on top of it. If they use a riddler on the coins after they are struck, you have to hope that it will catch it. There are really too many coins being produced to hope that a visual inspection by a human will spot it. Today with computer controlled visual inspection techniques you could probably catch it.
What Conder101 said. When I was working as an Authenticator for ANACS in the early 1980's we used to take our Summer Seminar students up to Denver for a floor tour of the Denver Mint. One time while I was there I saw a number of these empty tote bins pushed up against a wall. I went over and started looking in them and found something stuck in the gate at the bottom in the fourth one I looked in. Can't remember now whether it was a blank, a planchet or a struck coin. Depending on what that bin got used for next, that is where that something ended up.
If this coin was an accident as Condor says then I have more respect for it. I don't like those errors that are intentionally manufactured. I don't challenge what Henway is saying, but there needs to be a little more diligence and integrity in exactly this sort of thing.
The U.S. Mints do exercise due diligence. That is why U.S. coin errors have collectible value. If they were common, nobody would care. How many billions of coins did the U.S. Mints produce in that year? Let's see you make a billion of something without making a few mistakes. I know I couldn't.
I had it unofficially verified at a coin show in Manchester NH but didn't want to go through the hassle since I'm not a collector and otherwise have no interest. I've had it since 1976, it sits in a case in the drawer.