Posted By:
Kevin"I'd say its highly unlikely that any of them are doctored to make them look like blank backs."
Collectors are always willing to pay a premium for anything that is different or considered errors. Of course high grade pre-war cards sell for more but what would a blank back Cobb T205, T206 C-series etc. in low grade would sell for? Here are some examples. I'll let you guess the issue(s).

As I mentioned before, imagine what is not (will not) being shown. "Anyone can doctor a card, it's the one who can undoctor a card and get it authenticated that has the real skill."
For most, these normally taboo topics may be new, perhaps a bit of a shock. I hope you are enjoying them.
Kevin
edited to say - oppps this was meant to be posted as a reply on another thread.