T206 Ghost Overprint 2-IN-1 George Mullen & George Schirm

The card presents here is a T206 George Mullen with very rare overprint error. This Mullen card has a ghost image of his black printing to the right of the main image. The other black printing to the left of the Mullen ghost image is George Schirm. This 2-IN-1 overprint error gives us more understanding of T206 printing process. It provides solid evidence some population of T206s were not repeatly printed horizontally with a same image.

This type of overprint error is rarely seen and this is the only known Mullen specimen with Schirm overprint.