Die-Struck Coin Minting and Errors
Test your knowledge of die-struck coin minting processes, equipment, terminology, and common minting errors.
Questions
What is the process of creating a die-struck coin called?
- Minting
- Casting
- Engraving
- Stamping
What are the two main types of dies used in minting?
- Obverse and reverse
- Upper and lower
- Male and female
- Positive and negative
What is the purpose of the collar in minting?
- To hold the coin blank in place
- To prevent the coin from sticking to the dies
- To create the raised rim of the coin
- To control the thickness of the coin
What is the term for the small raised lines on the edge of a coin?
- Reeding
- Milling
- Knurling
- Serration
What is the purpose of annealing in the minting process?
- To soften the metal blank
- To harden the metal blank
- To remove impurities from the metal blank
- To create a smooth surface on the metal blank
What is the term for the process of removing excess metal from a coin blank?
- Trimming
- Shaving
- Clipping
- Blanking
What is the term for the process of cleaning and polishing a coin after it has been struck?
- Finishing
- Burnishing
- Patinating
- Pickling
What is the term for the study of coins?
- Numismatics
- Philately
- Scripophily
- Exonumia
What is the term for a coin that has been struck twice?
- Double strike
- Mule
- Overstrike
- Counterfeit
What is the term for a coin that has been struck on a blank that is too small?
- Underweight
- Off-center
- Broadstrike
- Capped die
What is the term for a coin that has been struck on a blank that is too large?
- Overweight
- Off-center
- Broadstrike
- Capped die
What is the term for a coin that has been struck off-center?
- Underweight
- Off-center
- Broadstrike
- Capped die
What is the term for a coin that has been struck with a die that has a broken or damaged design?
- Underweight
- Off-center
- Broadstrike
- Capped die
What is the term for a coin that has been struck with a die that has been rotated?
- Underweight
- Off-center
- Broadstrike
- Rotated die
What is the term for a coin that has been struck with a die that has been misaligned?
- Underweight
- Off-center
- Broadstrike
- Misaligned die