Summer For Heroes - Nicolas Trudgian - 500pc Jigsaw - Gibsons. 500 piece jigsaw. Puzzle size: 49cm x 34cm (approx: 19" x 13"). It is 1940 and the vapour trails high in the summer sky tell the story of the battle that was to be the RAF"s finest hour. Against the backdrop of the white cliffs of Dover, Spitfires from 65 squadron head home to re-arm, whilst a squadron of Hurricanes climbs out to intercept a further wave of invaders. Gibsons jigsaw puzzles are made from 100% recycled, high quality puzzle board and are a joy to handle again and again.