As a young kid here in the UK I had a Ladybird book with a picture of an X-15 - almost 50 years later I can still remember my fascination with that machine. 99

As a young kid here in the UK I had a Ladybird book with a picture of an X-15 - almost 50 years later I can still remember my fascination with that machine. 99% Certain it was this one: https://www.arranalexander.co.uk/exploring-space-vintage-ladybird-book-achievements-series-601-first-edition-dust-cover-1964-2513-p.asp https://www.arranalexander.co.uk/exploring-space-vintage-lad... Now I have to find one!