The skyscraper is topped by a distinctive sign with the Philadelphia Saving Fund Society's initials. The high letters are white by day and illuminated with red neon lights by night. The sign hides mechanical equipment and can be seen for . The PSFS sign has become a Philadelphia icon. At the time of construction, abbreviations were rarely used but architects Howe and Lescaze pushed for their use as the full name would have been illegible from the ground. When Loews announced it was going to be converted into a hotel, the first question asked by reporters was what was happening to the sign. Loews briefly considered altering the sign by projecting the Loews name on it, but the idea was soon scrapped. South of the sign is a television tower. The tower is set up for relaying TV and radio signals and was added to the skyscraper in 1948.