Mary O'Hara London Palladium theatre poster (1970s, Charlie Smithers, Swingle II)

A rare poster from a 1970s season of Mary O'Hara at the London Palladium.  Please don't hesitate to ask if I can answer any queries.

Approximate measurements 49.5 cm x 74.5 cm

Some marks on the back of the poster but shows through a little at the bottom of the poster.