Browse Nomisma IDs


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1 to 16 of 16 total results.

Subaerat

Definition
Coin with a copper alloy core the surface of which is of a different metal.
Concept Scheme
http://nomisma.org/id/

Overstrike

Definition
Striking of a new type uisng an existing coin as a flan. Elements of the original type are visible beneath the new one.
Concept Scheme
http://nomisma.org/id/

Hammered rim

Definition
Creation of a raised rim by hammering parallel to the two faces of the coin.
Concept Scheme
http://nomisma.org/id/

Subferrat

Definition
Coin with an iron core the surface of which is of a different metal.
Concept Scheme
http://nomisma.org/id/

Recut die

Definition
Secondary re-engraving of a coin die after it has already been used to strike coins, for example to repair defects in the die or modify the design.
Concept Scheme
http://nomisma.org/id/

Silvered

Definition
With an overlay (wholly or in parts) of a thin layer of silver.
Concept Scheme
http://nomisma.org/id/

Folded flan

Definition
A flan or coin which is folded in two or more prior to being struck on the outer faces.
Concept Scheme
http://nomisma.org/id/

Flawed die

Definition
A cracked, worn, corroded, or similarly defective die used to strike a coin.
Concept Scheme
http://nomisma.org/id/

Gouging

Definition
The practice of scraping material from the surface of a flan to reduce its weight.
Concept Scheme
http://nomisma.org/id/

Central point

Definition
Central point marked into a flan before striking.
Concept Scheme
http://nomisma.org/id/

Surface enrichment

Definition
The intentional practice of increasing the precious metal content of the surface of a coin.
Concept Scheme
http://nomisma.org/id/

Off centre

Definition
A strike whereby the die was not placed centrally on the flan, but displaced to one side so that part of the design is missing.
Concept Scheme
http://nomisma.org/id/

Cracked flan

Definition
Flan that has cracked and been partially split as a result of the striking process.
Concept Scheme
http://nomisma.org/id/

Brockage

Definition
A misstrike whereby a coin remains in the upper die after striking and acts as the die to strike the next coin, therbey producing a negative image of the design in the lower die.
Concept Scheme
http://nomisma.org/id/

Double strike

Definition
Double or multiple strike during production whereby the die is displaced for the second or subsequent strike.
Concept Scheme
http://nomisma.org/id/

Hybrid

Definition
A combination of obverse and reverse dies that do not correspond to an official emission.
Concept Scheme
http://nomisma.org/id/
1 to 16 of 16 total results.