Glossary
Rim
The rim is the raised border that frames a coin’s design. It protects the devices and fields from wear and helps coins stack and …
Numismatics Coin FAQ
A collecting-focused glossary for coin terms, minting vocabulary, and evaluation basics.
Glossary
Key Date
A key date is a coin in a series that is notably rarer or more in demand than others, often becoming a must-have to complete a set. It helps …
Glossary
Obverse
The obverse is the “front” side of a coin, typically featuring the primary design (like a portrait, emblem, or national symbol) …
Glossary
Die
A die is the hardened metal tool engraved with a coin’s design that impresses the image onto a planchet. One die is used for each side …
Glossary
Broadstrike
A broadstrike occurs when a coin is struck without the retaining collar, allowing the metal to expand outward. The coin is often wider and …
Glossary
Toning
Toning is the natural color change that occurs as a coin’s surface reacts with the environment. It can be subtle or vibrant and may …
Glossary
Provenance
Provenance is the ownership history of a coin. Well-documented provenance can boost desirability, establish authenticity, and connect a coin …
Glossary
Die Crack
A die crack is a raised line on a coin caused by a fracture in the die. It is a mint-made feature that can range from tiny hairlines to …
Glossary
Clipped Planchet
A clipped planchet is missing a portion of metal before striking, often from the blanking process. Genuine clips have diagnostic shapes and …
Glossary
Reverse
The reverse is the opposite side of the obverse and usually carries a secondary design such as an eagle, denomination, commemorative theme, …