The Calculus Affair - Methuen 1960 1st UK Edition HB Rare Tintin book Herge EO

This is the original 1960 1st UK Edition printed by Methuen. Extremely rare and collectible book. 

CONDITION: Good/Fair condition considering age. Cover is good with some discolouring/marks in places, edges & corners have minor rubbing wear, spine is decent and firm with some wear and cracking to it. The Pages are good overall with minor yellowing only but the first inner page has some colouring in and the title page has a big ink scribble. Please see pictures.