Core terminology and grading concepts across popular collecting hobbies such as coins, stamps, and trading cards, one term per card.
35 cards · basic cards · AI-written, checked twice. Edit anything.
- Numismatics
Show answer
The hobby of collecting and studying coins- Philately
Show answer
The hobby of collecting and studying postage stamps- Numismatist
Show answer
A person who collects or studies coins- Philatelist
Show answer
A person who collects or studies stamps- Mint condition
Show answer
A collectible in perfect or near-perfect state with no visible wear or damage- Circulated (coin)
Show answer
A coin that has passed through regular everyday use in commerce- Uncirculated (coin)
Show answer
A coin that was never used in everyday commerce- Obverse
Show answer
The front or face side of a coin- Reverse
Show answer
The back side of a coin- Reeding
Show answer
Fine lines or ridges on the edge of a coin, originally to prevent shaving off precious metal- Proof (coin)
Show answer
A coin specially struck with extra pressure for collectors, not intended for circulation- Toning
Show answer
Color change that develops on a coin surface from oxidation and exposure over time- Strike (coin)
Show answer
The quality and sharpness of the image stamped onto the coin blank during minting- Key date
Show answer
A coin with a date and mintmark combination that is difficult to find or rare- Perforation
Show answer
The small holes cut between stamps on a sheet to allow easy separation
FlashKeepers