No problemo MD. Shoot me an email if you need any help (blacksoxfan a/t/ cardpricer.com)
Post Script:
One of the examples I have in my collection is one of my favorite cards. It's of Ray Fisher and has an "advertisement" on the back - that is actually a survey. You can see the back by clicking on the image:
http://www.blacksoxfan.com/reds.php#ray