A.J. Casson: Jack Pine and Poplar 1,000-piece Jigsaw Puzzle Jack Pine and Poplar, 1948, by A.J. Casson (Canadian, 18981992) 1000 interlocking pieces Puzzle size: 25 x 20 in. Thoughtfully conceived and engagingly intricate, Pomegranate's 1,000-piece interlocking jigsaw puzzles combine superb color reproduction, stunning and unusual images, and sturdy construction to delight generations of novice and veteran puzzleworkers. WARNING: Choking hazardsmall parts. Not suitable for children under 3 years.