X-MEN #1 (1963 - MARVEL - UK Price Variant) - One of the most important Marvel Silver Age Keys - the first appearance of the X-Men (Angel, Beast, Cyclops, Iceman and Marvel Girl), their mentor Professor X and their most important foe, Magneto - Cover and Interior art by Jack Kirby - NB: Lower grade copy with creasing to the cover + a large spine split running from the bottom edge to just above the centre of the book