One of the most intriguing and little studied forms of nineteenth-century photography is the tintype. Introduced in 1856 as a low-cost alternative to the daguerreotype and the albumen print, the tintype was widely marketed from the 1860s through the first decades of the twentieth century as the most popular photographic medium. The picture-making preference of the people, it was almost never used for celebrity portraiture: It was affordable, portable,...