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2023 US Error Coin Guide: Unsurpassed and Comprehensive
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Die Errors
Die errors are created from broken dies, cracked collars, hub errors, misaligned dies, doubled dies, and repunched mintmarks.
Abrasions (scratches)
Bar
BIE
Broken hub
Broken punch
Collar break
Debris in hub
Die adjustment
Die breaks
Die crack
Die cud
Die cud retained
Die gouges
Die wear
Doubled die
Filled dies
Filled letters and numbers
Finned
Mintmark
Misaligned dies
Misplaced date
Missing details
Mule
Partial collar
Tilted collar
Mint Striking Errors
Mint striking errors result from the mint stamping process.
Bonded
Broadstrike
Brockage
Canceled
Chain
Collar clash
Counter brockage
Cupped
Double denomination
Double-struck
Extended rim
Flip over
Indent
Mated Pair
Multiple Struck
Off-center
Reverse Brockage
Rotated
Saddle
Strick over
Strikethrough
Uniface
Planchet Errors
The coin blank and the blanks with upsets on edge are called planchets. A type I planchet is the coin blank itself. A type II planchet is the coin blank with the edging rolling. Planchet errors include blanks used in the minting process with cracks, clips, defective lamination, occluded gas, unplated, wrong metal, and wrong planchet.
Blank
Clipped
Defective
Foreign
Fragmented
Improperly annealed
Lamination
Lamination retained
Occluded gas
Split
Thin/Thick
Tilted
Transitional
Unplated
Woodgrain
Wrong metal
Wrong planchet
Die Errors
Die errors are created from broken dies, cracked collars, hub errors, misaligned dies, doubled dies, and repunched mintmarks.
Abrasions (scratches)
Bar
BIE
Broken hub
Broken punch
Collar break
Debris in hub
Die adjustment
Die breaks
Die crack
Die cud
Die cud retained
Die gouges
Die wear
Doubled die
Filled dies
Filled letters and numbers
Finned
Mintmark
Misaligned dies
Misplaced date
Missing details
Mule
Partial collar
Tilted collar
Mint Striking Errors
Mint striking errors result from the mint stamping process.
Bonded
Broadstrike
Brockage
Canceled
Chain
Collar clash
Counter brockage
Cupped
Double denomination
Double-struck
Extended rim
Flip over
Indent
Mated Pair
Multiple Struck
Off-center
Reverse Brockage
Rotated
Saddle
Strick over
Strikethrough
Uniface
Planchet Errors
The coin blank and the blanks with upsets on edge are called planchets. A type I planchet is the coin blank itself. A type II planchet is the coin blank with the edging rolling. Planchet errors include blanks used in the minting process with cracks, clips, defective lamination, occluded gas, unplated, wrong metal, and wrong planchet.
Blank
Clipped
Defective
Foreign
Fragmented
Improperly annealed
Lamination
Lamination retained
Occluded gas
Split
Thin/Thick
Tilted
Transitional
Unplated
Woodgrain
Wrong metal
Wrong planchet
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