U.S. Coin Price Guide

Coin Collecting

COIN COLLECTING DEFINITIONS STARTING WITH "J" AND "K"

J

Jefferson nickel: the U.S. Five Cents coins struck from 1938 until today.

K

key: the coin in a series that is the hardest to obtain and generally the most valuable (key date coin).

knife edge: the wire rim caused when metal squeezes between the die and the collar under extreme pressure.



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