Read this today in "Our Daily Bread":
"An antique dealer thought the wrinkled old baseball card she found might be worth $10. After posting it on eBay, she began to wonder if it might be more valuable than she had thought. She removed the posting and consulted a professional evaluator who confirmed that the photo on the 1869 card showed the Cincinnati Red Stockings, the first professional baseball team in the US. The card sold for more than $75,000.
Mike Osegueda’s article in The Fresno Bee said that even though the card was creased and discolored, the most important thing was its authenticity—it was real." (http://www.rbc.org/devotionals/our-daily-bread/2010/02/24/devotion.aspx)
