During that span, one of its advertisement was featured at the top of Ebbets Field's scoreboard on the right-field wall. The letters h or the first e on the wordmark lit up depending on whether the official scorer ruled that a batter reached base on a hit or an error, respectively. Foxboro Stadium, the home stadium of the New England Patriots from 1971-2001, was originally named Schaefer Stadium after the beer company paid naming rights for the privilege, one of the earliest known examples of a stadium selling naming rights. After 12 years, the contract expired and the name was changed to Sullivan Stadium in 1983 (after the family that owned the team). During the 1970s and 1980s, Schaefer was one of the top selling beers in Puerto Rico and Guam. A large and quite famous Schaefer beer billboard was once displayed at the main entrance to the city of Bayamón. Schaefer still upholds the record for being the beer with the most unit sales in Puerto Rico, 13 million cases in a year, in the year 1979-80. It became quite famous among Puerto Rican salsa fans and superstars like Frankie Ruiz, Tito Rojas, and Lalo Rodríguez. References External links Listing on RateBeer.com American beer brands Pabst Brewing Company History of Allentown, Pennsylvania