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A picture of the daguerreotype case. This is the origin for the best photo of Cathrine Mulcahy. Click on picture to download larger images. |
OutsideThe thin embossed leather outer skin did hold it together and thusly provided a "hinged" edge for the case. The case is 3-3/4" wide by 4-11/16" tall. The photo itself is about 3" by 4". The case is 5/8" thick (not including bevel), The backside (shown left) is beveled about 1/8" and holds the photo. The cover side is the same on the outside (except the bevel isn't on this side). On the inside, it has embossed dark green velvet. |
The whole thing is edged with what I would guess is gold leaf. I can't say what material serves as the structural hull but it has held up well and the swing hooks and eyelets are still attached and functioning. |
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About DaguerreotypesThe daguerreotype is an early type of photograph, developed by Louis Daguerre. The image is exposed directly onto a mirror-polished surface of silver. The process included treating silver-plated copper sheets with iodine to make them sensitive to light, then exposing them in a camera and "developing" the images with warm mercury vapor. The daguerreotype is a negative image, but the mirrored surface of the metal plate reflects the image and makes it appear positive in the proper light. Thus, daguerreotype is a direct photographic process without the capacity for duplication. Daguerre and Arago publicized the steps of the process on August 19, 1839, almost without restriction, as a gift to the world from France. Within a year of the initial disclosure, improvements were made in the lenses, apparatus, and chemistry of the process to the point that portraiture was possible in relatively short exposures. In later developments bromine and chlorine vapors were also used, resulting in shorter exposure times. By 1843 a burgeoning daguerreotype portrait industry had evolved. For the equivalent of $2 to $5 in almost any town, a person's "phiz" could be immortalized on a slip of silver, framed with a rich gilt mat, and pressed into a fitted case covered in fine embossed leather. In the early 1840s, the invention was introduced in a period of months to practitioners in the United States by Samuel Morse, inventor of the telegraph code. By the mid 1850's, millions of the shiny little pictures had been made of almost every aspect of life (and death), and photography had begun to become commonplace. It was difficult to make in larger sizes; the most common size was about 2 3/4 x 3 1/4 inches (7 x 8.2 cm). |