XZH/5650 | Royal Ballet \ Theatre Royal de la Monnaie, Brussels, Belgium \ 17/10/1973, 18/10/1973, 21/10/1973 | Cover and cast pages only. | 17 October 1973-21 October 1973 |
XZH/6012 | Royal Ballet \ Theatre Royal de la Monnaie, Brussels, Belgium \ 19/10/1973-20/10/1973 | | 19 October 1973-20 October 1973 |