Very rare box imitating a book and containing two daguerreotypes.
 The book's cover is finely decorated with mother-of-pearl elements, and the interior, like a Union Case, is lined with damask velvet. The word TOKEN is written in gold lettering on the spine.
 The first daguerreotype depicts a child sitting in a chair, while the second shows his mother with her hands clasped. Both daguerreotypes are mounted using the pinchbeck technique.
 The daguerreotype was the first photographic process, developed by Nicéphore Niépce and later Louis Daguerre, and introduced to the world (except the United Kingdom) by France in 1839. It is both a negative and a positive, hence its characteristic mirror effect. In the 19th century, they were also poetically called "mirrors that remember."
 Given the cost and technical difficulties, it will only be used for about ten years in France and will be replaced by other processes.
 However, there are later daguerreotypes, particularly American or Anglo-Saxon ones.