This is a scale model of a <i>Tyrannosaurus rex</i> exhibit which was planned by the American Museum of Natural History but never executed. The image was published in a 1913 paper written by Museum president <a href="//commons.wikimedia.org/wiki/Henry_Fairfield_Osborn" title="Henry Fairfield Osborn">Henry Fairfield Osborn</a>, who died in 1935.
Osborn, H.F.
1913
Source: Osborn, H.F. 1913. <i>Tyrannosaurus</i>: restoration and model of the skeleton. <i>Bulletin of the American Museum of Natural History</i> 32: 91-92. (download <a rel="nofollow" class="external text" href="http://digitallibrary.amnh.org/dspace/handle/2246/1735">here</a>)