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.