1964 Lincoln Cent
Struck on a Canceled India 1942 1/4 Rupee
NGC MS 61
This is not only an unique Lincoln Cent major mint error, it is also one of the most fascinating and intriguing ever to be authenticated and certified. Originally in an NGC AU 58 holder (pictured below) it was subsequently conserved by NCS and is now in a NGC MS 61 holder.
Featured in an article by NGC in Mint Error News Magazine Issue 38