 Much of the interior was remodelled in the mid-20th century, although some period plaster decorations remain in the Regency room.From 1873 the main auditorium housed a large organ originally built for the Royal Panopticon of Arts and Science in Leicester Square, from where it was removed to St Paul's Cathedral and thence to the Victoria Rooms.In July 1899 it was decided to replace this with an electric organ, which could be played from a keyboard at a considerable distance from the organ itself.