A B C D E F G H I J K L M N O P Q R S T U V W X Y Z





KARAT
- The degree of fineness of gold. Pure gold is 24 karats. Most gold coins have a fineness of 22 karats or approximately 91.7% pure.
KEY DATE
- The most difficult date to locate (in a specified grade) in a particular series. See also Semi-key and Common Date.
"KING" OF CANADIAN COINS
- The unofficial designation given to any example of the Canadian fifty cent coin dated 1921. Only about 100 examples, in all grades, are thought to exist
KLIPPE
- A coin on a planchet of square, rectangular or lozenge shape; often struck as a necessity piece or sometimes as a specimen or a numismatically oriented product.
KNIFE EDGE
- Same as wire Edge.
KNOWLEDGEABLE
- Someone with specialized information AND experience relating to a particular area, eg. a knowledgeable grader of uncirculated coins will not only have a working knowledge of the definitions for each of the uncirculated grades but will also have a depth understanding of the typical strike, lustre, etc. for each of the series of coins that he grades.
KNURLING
- A common reference to the vertical milling in a rim die for coins with a reeded edge.





A B C D E F G H I J K L M N O P Q R S T U V W X Y Z


 

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