Luckily she realized something might be special about the card when she started getting lots of inquiries and someone wanting to end the auction and buy it immediately. So she decided to call a friend and he suggested to end the auction before she received any bids.
Lucky for Bernice she did, the card is extremely rare and should fetch 6 figures at auction. She plans to repost the card on eBay in the future, with a bit more fanfare and perhaps a reserve. To check out the full story and history of the card, here's a link to the wonderful article by the good folks at the Fresnobee.