Adam volumes 49/48-49 show the executed design for the front and sides of four pedestals - two along each side of the hall - which support figurative sculptures. Adam volume 49/47 shows the executed design for the pedestal in the apse of the hall which supports a cast of the Apollo Belvedere. None of these are shown to their executed design in Adam's laid out wall elevations for the room (Adam volumes 27/35 and 39/3).