Bodmer's unfinished sketch of the prison at Pittsburgh, made during his brief stay in that city in September, 1832, furnished the basis for the aquatint designated as Vignette VI in the atlas that later accompanied the publication of Prince Maximilian's travels.

On the afternoon of July 27, Maximilian called upon Dr. Saynisch to inspect his collection of scientific books and related natural history specimens, for the most part locally obtained. Later, accompanied by Bodmer, they took a stroll along the Lehigh River past Moncasa Creek. Bodmer's softly washed watercolor of the scenery along the Lehigh appears to have been scrubbed in spots and remains in an unfinished state.

On the afternoon of August 2 71 Maximilian and Bodmer explored the banks of Tobyhanna Creek, and Bodmer made a sketch of the bridge crossing it. Maximilian commented in his journal that Bodmer waded several times across the stream until he found "a favorable spot for the view. The rest of us were looking for birds and plants." Another view of this bridge was reproduced as Vignette IV in the atlas of plates that accompanied the publication of Maximilian's journal nearly ten years later.