James Finley is often credited as the father of the modern suspension bridge, and three of his designs were built over the Lehigh River. See the article about James Finley, http://www.structuremag.org/article.aspx?articleID=804, that includes…
This appears to be a watercolor sketch done by Karl Bodmer who accompanied Prince Alexander Philipp Maximilian zu Wied-Neuwied on his travels in Noth America that led to the book, Maximilian Prince of Wied’s Travels in the Interior of North America,…