Mary Leakey

 Thank you Spear! A PHQ of the lady who needs no introduction, Mary Leakey from the 10v issue celebrating the 100th and 150th birthdays of 'Great Britons'. 

Thank you Tundi! Mary Leakey on a 1st class stamp. This image is rather odd, in that it is a composite. The original photo of her is black and white with a garden in the background, and here they replaced it with Laetoli? 

Thank you Pete, for sending away for the First Day cancel!