overstrike

[verb oh-ver-strahyk; noun oh-ver-strahyk]Numismatics
noun
  1. a coin that has been overstruck without complete obliteration of the original design.

Origin of overstrike

First recorded in 1900–05; over- + strike
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018