10a. Hawkins' Restoration of Hadrosaurus, 1868 [1904]
In 1868 Benjamin Waterhouse Hawkins undertook a skeletal restoration of Leidy's Hadrosaurus, as part of an ill fated project to erect in New York's Central Park a counterpart to the Sydenham Park dinosaur tableau. Most of Hawkins' American restorations were destroyed, but the Hadrosaurus skeleton apparently survived and was on display at the Academy of Natural Sciences in Philadelphia for many years.
There are a few archival photographs of the skeleton that survive, and they have been reproduced in several recent secondary sources. But these photographs were not published at the time, so it is difficult to find an image in the contemporary literature. The best we have been able to uncover is this photograph that appeared in Frederick Lucas's article on the 1903 restoration of Trachodon. Lucas wanted to show what previous restorations looked like, and so he provided the reader with a nice full page photograph of Leidy's Hadrosaurus.
Source
Lucas, Frederick A. "The dinosaur Trachodon annectens," in: Smithsonian Miscellaneous Collections, vol 45 (1904), pp. 317-320. This work was on display in the original exhibition as item 10a.