I chose to write my English drama paper on how the plot line of this play is affected by an alternate ending, but I can’t find the alternate ending!

One day a father gets out of work and on his way home he suddenly remembers that it’s his daughter’s birthday. He pulls over to a toy shop and asks the sales person, ‘How much for one of those Barbie’s In the display window?’ The salesperson answers, ‘Which one do you mean, Sir? We have: [...]

if u can, can u give me the page number?