Carnegie Museum of Natural History’s Tyrannosaurus Rex is the world’s first specimen of the most famous dinosaur of all time: Discovered in 1902 by legendary fossil hunter Barnum Brown, this skeleton of the giant meat eater was designated three years later as the holotype, or name bearing specimen, of the species Tyrannosaurus Rex.
Many large dinosaur skeletons found in museums are actually castings. Not only does the Carnegie have the real thing, many of the cast skeletons in larger museums were taken from this original.