[Arran]

Yes;
  If there is an electrostatic shield it is inside of the transformer, sometimes they wrap some of the copper foil on the outside of the iron, but most of the time you would have to remove one of the end bells (covers) to see it. However if the set had one it would be indicated on the schematic as a line parallel to those denoting the iron laminations, but with a ground symbol attached.
Regards
Arran