Thanks for helping improve the accuracy of the site. We’ve noted what item you were on; please now visit the web page of the duplicate of production of Show Boat, by Oscar Hammerstein II and Jerome Kern, Adelphi Theatre, London, 29th July 1971 – 29th September 1973 and click the button that will have appeared there.

If they have the exact same name, a search for production of Show Boat, by Oscar Hammerstein II and Jerome Kern, Adelphi Theatre, London, 29th July 1971 – 29th September 1973 will probably help.