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 The Thistle and the Rose, by William Douglas Home, Vaudeville Theatre, (Strand) London, 15th May – 2nd June 1951 and click the button that will have appeared there.
If they have the exact same name, a search for production of The Thistle and the Rose, by William Douglas Home, Vaudeville Theatre, (Strand) London, 15th May – 2nd June 1951 will probably help.