Definitions for "Double die"
Keywords:  lincoln, misaligned, die, hub, struck
an error in the manufacturing process, which results in a doubling of the image (devise) and the wording ( legend s) on the coin
A dubious term sometimes intended to mean a doubled die coin and sometimes indicating machine doubling (because there is often a substantial difference in value between the two, a savvy buyer will be sure to determine which case is true for any coin described as such)
A term sometimes intended to mean a doubled die coin and sometimes indicating a machine doubled coin (note that there are vast differences in the values).