That is what's called a "wet-ink transfer". After being printed, the sheets were stacked, whereupon the still wet ink from the front of one card, would transfer to the back of the card laying on top of it. It is common with Goudeys.
No extra value is attached to cards with the ink transfer.
Steve
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Successful BST deals with eliotdeutsch, gonzo, jimivintage, Leon, lharris3600, markf31, Mrc32, sb1, seablaster, shammus, veloce.
Current Wantlist:
1909 Obak Howard (Los Angeles) (no frame on back)
1910 E90-2 Gibson, Hyatt, Maddox
Last edited by Steve D; 09-03-2016 at 06:53 PM.
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