A nice struck on wrong planchet error coin. This is a 1966 Lincoln Cent struck on a dime planchet. Let us examine this struck on wrong planchet coin and think of ways that this struck on wrong planchet error can occur. How are struck on wrong planchet coins made? In order to have a slim […]
Category: Educational Series
MintErrors.org Educational series, in which we discuss all sorts of die varieties and error coins.
Russia Mule error coin double reverses !
Unique Mule error coin created with two reverse dies. A very unique Russian Mule error coin. This Mule coin was made with a 10 Ruble reverse die and a 2 Ruble reverse die. I typically surf about a half dozen or more auctions houses a day in search of some dramatic error coins that will […]
How are off center coins made?
How off center coins are produced Off center coins are typically created when there is a malfunction in the minting press. When a minting press is producing coins normally without any errors, a planchet is fed onto the anvil die. The collar then surrounds this blank planchet. The hammer die then strikes or squeezes the […]
Amazing struck on wrong planchet major mint error coin!
1976-S Proof Bi-Centennial Kennedy Half Dollar struck on wrong planchet. We recently had the pleasure to purchase and attribute a 1976-S Proof Bi-Centennial Kennedy Half Dollar struck on wrong planchet major mint error coin. This extremely rare Proof Kennedy Half Dollar is certified by PCGS and given a grade of Proof-67 with Deep Cameo properties. […]
Major mint Error coins from India – Multi-Struck coins
In this post we will chat about a major mint error that I purchased from India. Today we will talk about some multi-struck coins which are considered to be major mint error coins. I wanted to purchase more than a dozen of the multi-struck errors, so I could have a wide variety as well as […]
Capped Die Major mint error
I have a source within India who I am working with to obtain some World Coin major mint errors. He offered me a lot of five, 25 Paise major mint error coins from India. The lot was not specific on what each coin was. I thought this mint error coin lot was decent in price, […]
Error & Variety Collectors – Join CONECA
A society for error and variety coin collectors The Combined Organizations of Numismatic Error Collectors of America (CONECA) is a great organization to offer education about coins, error coins and die varieties. CONECA (pronounced: CŌ´NECA) is a national numismatic organization devoted to the education of error and variety coin collectors. CONECA focuses on many error […]
Educational Series: What is a Doubled Die?
A Doubled Die is a term in coin collecting used to refer to doubling in the design elements of a coin. Doubled dies can appear as an outline of the design or in extreme cases, having design elements and dates appear twice in an overlapping fashion. Doubled dies can be seen on the Obverse or Reverse of the […]
Educational Series: What is a Repunched Mint mark?
How to tell if a coin is a Repunched Mint mark (RPM) Since Repunched mint marks have not been made since the mid 1990’s, I get a lot of questions about them from the younger coin collectors. They know repunched mint marks exist but they don’t know to what extent and on which denominations. Time […]