Twelve-year-old card collector Bryan Wrzesinski, owner of some 40,000 baseball cards, spotted a 1968 Nolan Ryan/Jerry Koosman rookie card at the Ball-Mart, a newly opened baseball card store in Itasca, Illinois. The price of the card was marked as "1200/." An inexperienced sales clerk interpreted this figure to mean $12.00 and accepted that amount in exchange for the card. The proprietor of the Ball-Mart, Joe Irmen, claimed that the card had been offered for sale at $1,200 (a price in line with its market value) and asked for it back. Wrzesinski refused to return the card. Can Irmen sue to rescind the transaction? Explain fully.