19th century family group (silver image) mounted to glass.
Daguerreotype (1839-1860's) known as "the mirror with a memory" is a silver image on a polished copper support. The image may appear as a negative or positive depending on the angle of view.
Deterioration is caused by environmental pollutants that invade the cased image through a broken seal of the original taped edge, or by abrasion and fingerprints if the image has been separated from its case.
We are able to disassemble the components, clean the cover glass, and renew the seal to give the image additional life. The example shows digital restoration, copies were dispersed to family members.
Gelatin silver print (1885 to present) This is the most common type of black & white photograph.
The silver image is suspended in a gelatin binder on a paper support. The earliest Gelatin silver prints are often confused with Albumen prints due to similar presentation mounts and aspects of deterioration. Common signs of deterioration are fading, yellowing and "silvering-out". "Silvering-out" presents as reflective tarnish in the darkest portions of the image area, where the silver is most concentrated.
In this example, three Gelatin silver photographs were digitally composited to create a complete view and the handwritten note was lowered to bring attention to the dog in the foreground.