Error collectors usually end up collecting different types of clip error coins. Clip errors are coins struck on a clipped planchet. This happens when a blank is incorrectly punched from a sheet of metal. There are various types of clips as well as other error coins that have a clip involved. The larger clips are preferred and priced accordingly.
Regular coin collectors under appreciate clips. Some think they can easily be faked, which is not true. There are diagnostics for real clips, such as metal flow and the Blakesley Effect. Metal flow is metal movement towards the clip. The pressure from the dies wants to push metal towards the blank space left by the clip. Blakesley Effect happens near the rim and is characterized by weakness in the strike opposite the clip. Some numismatics think all real clips will have the Blakesley Effect, but that is not the case. Some genuine clips do not show that characteristic. Metal flow seems to be a constant on real clips so it is what I use as a diagnostic to confirm true clips.
The percentage of a clip error is determined by weight. There are many different types of clip errors. The most common clip is the curved clip followed by the straight clip which happens at the end of the sheet of metal. There can be double, triple, and multiple clipped coins. Rarer clips include ragged, bowtie, and crescent clips. Another very rare error is the incomplete clip. Sometimes a clip can be part of a multiple error coin like an off center on clipped planchet. I even have examples of a clipped planchet struck thru another coin.
Clips may be one of the only major errors found on coins minted from 2002 until present. In 2002 the US Mint put in policies and machinery to try to eliminate error coins from getting out. Clip errors seem to slip through the mints efforts and may be the only way to get a major error on certain issues.
There is a lot more to a collection of clip error coins than most numismatics think. It is quite a fascinating sub-field of error collecting with all the different types of clips and coins with multiple errors that include clips as part of the error.
For additional error coinage, find us on Instagram at ctf_error_coins or via our website at ctferrorcoins.com.
1964 Giant Crescent Moon Clip Nickel Mint Error BU
PCGS MS65 Struck 35% Off Center And 16% Clip Jefferson Nickel Mint Error
1999 NGC MS65 Off Center On Crescent Clip Pennsylvania Quarter Mint Error
1956 NGC MS63 Football 1.3 Gram Elliptical Clip Planchet Wheat Cent Mint Error
1920 ANACS AU58 Off Center On 2.5 Grams Straight Clip Wheat Cent Mint Error Rare
1976 NGC MS64 Huge Straight Clip 3.2 Grams Bicentennial Quarter Mint Error Rare
1976 NGC MS64 Triple 22% Clips Bicentennial Half Dollar Mint Error 8.8 Grams
NGC MS64 Off Center On Ragged Corner Clip Planchet Wheat Cent Mint Error Unique
1974 NGC MS64 Incomplete Clip Kennedy Half Dollar Mint Error Extremely Rare
2007 D NGC MS62 Indented By A Clipped Planchet Nickel Mint Error Very Rare Date
2014 NGC MS62 Large Triple Clips Arches Quarter Mint Error Super Rare Date
1965 NGC MS64 Bow Tie Triple Curved Clips Lincoln Cent Mint Error Unique
1999 IGC MS65 Off Center Triple Clips Connecticut Quarter Mint Error
NGC MS63 Off Center On Double Clip Planchet Nickel Mint Error
2000 D NGC MS63 HUGE 30% Clip Planchet Kennedy Half Dollar Mint Error