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To make them harder to counterfeit.
It also makes it more obvious if the edge has been shaved for the gold or silver.
The idea was suggested by Master of the Mint Sir Isaac Newton.
The more common name for this practice is "reeding".
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∙ 8y ago
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What name is given to the study of coins?
Numismatics is the study of coins.
What has no vertices's or edges?
A sphere fits the given description
What shape has 6 edges 12 edges and all the edges are the same length?
If you mean 6 faces and 12 edges then a cube would fit the given description which also has 8 vertices.
What is the name of a shape that has 5 faces 8 edges 6 vertices?
There is not a polyhedron with the given number of faces, edges and vertices.
What are unusual coins given back?
Tokens
What figure has 6 faces and 12 edges?
A cube or a cuboid would fit the given description of 12 edges and 6 faces.
What is a date set of coins?
ALL us minted coins by stated value for a given year
An irregular area contained within given borders or edges?
Space
What are unusual coins given back that rhymes and is one syllable?
Odd shod coins.
What has 3 faces no vertex and 2 edges?
The description given fits that of a cylinder
Which solid has 2 edges and no vertices?
A cylinder would fit the given description.
How you do it find the shape if it has 5 faces and 9 edges?
The description given fits that of a triangular prism which has 5 faces, 9 edges and 6 vertices
