National Railroad Museum Union Pacific Big Boy Locomotive #4014 1000-piece puzzle by Lantern Press. Completed size approximately 18.5" x 28". Made from recycled materials using high-quality puzzle board and a glare-free matte image. 11"x17" reference poster included. Recommended for ages 8+ (Warning! Choking Hazard-small parts not for children under 3 years of age). Made in the U.S.A.