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Daguerreotypes, ambrotypes and early tintypes were usually sold in small folding cases. The cases were designed to keep the fragile surfa...
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Thursday, 18 August 2011
Art pour le petit déjeuner
Daguerreotypes, ambrotypes and early tintypes were usually sold in small folding cases. The cases were designed to keep the fragile surfaces of these images safe behind glass. Over the years, the cover glass in the cases can crack or become dirty. Some researchers report the glass itself can deteriorate, causing damage to the surface of daguerreotypes.
Many collectors and conservators choose to replace the old cover glass. This is an operation that requires EXTREME CAUTION. The fragile surface of a daguerreotype was compared to the delicate wings of a butterfly--one inadvertent touch and it will be marred forever. Removing the image from its case also requires care, because a slip can permanently bend a daguerreotype or tintype...or crack an ambrotype. One other potential drawback to replacing the glass: some collectors put a premium on daguerreotypes that have their original paper seals intact. If the seal is present, breaking it to replace the glass may have an impact on the image's market value.!!!
"When in doubt, consult an expert".