[Nicol Williamson with Richard Rodgers during a rehearsal for "Rex".]

[Composer Richard Rodgers during rehearsals for "Rex".]

[Composer Richard Rodgers and lyricist Sheldon Harnick during a rehearsal for "Rex".]

[Composer Richard Rodgers and lyricist Sheldon Harnick during a rehearsal for "Rex".]

[Composer Richard Rodgers and lyricist Sheldon Harnick during a rehearsal for "Rex".]

[Producer Richard Adler and director Edwin Sherin during rehearsals for"Rex".]

[Penny Fuller during rehearsals for "Rex".]

["Rex" theater still.]

["Rex" theater still.]

[Michael John as Prince Edward and Tom Aldredge as Will Somers in "Rex".]

[Richard Rodgers, Agnes De Mille, and others at a rehearsal for "Allegro".]

[Nicol Williamson as Henry VIII, King of England and Michael John as Prince Edward in "Rex".]

[Richard Rodgers and Agnes De Mille (on the sofa) at a rehearsal for "Allegro".]

["Rex" theater still.]

[Nicol Williamson as Henry VIII and Michael John as Prince Edward in "Rex".]

[Merwin Goldsmith as Comus in "Rex".]

["Rex" theater still.]

[Tom Aldredge as Will Somers in "Rex".]

["Rex" theater still.]

["Rex" theater still.]