An auction house expects six-figure bids when it sells a rare 148-year-old baseball card discovered at a yard sale in rural Maine. Saco River Auction Co. in Biddeford said a man found the card by chance in a photo album he bought in Baileyville, on the Canadian border. It is not the same as a modern baseball card. Instead, it is a photograph of the Brooklyn Atlantics amateur baseball club mounted on a card. Saco River manager Troy Thibodeau said he is aware of only two such cards in existence, the other at the Library of Congress. Thibodeau said he expects the Brooklyn Atlantics card to fetch at least $100,000 at its Feb. 6 auction.