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Conservation-restoration is the practice of cleaning and discovering the original state of an object, investigating the proper treatments and applying those treatments to restore the object to its original state without permanently altering the object, and then preserving the object to prevent further deterioration for generations to come (Caple, p. 5-6). [1]
Glass disease, also referred to as sick glass or glass illness, is a degradation process of glass that can result in weeping, crizzling, spalling, cracking and fragmentation. [ 1 ] [ 2 ] Glass disease is caused by an inherent instability in the chemical composition of the original glass formula. [ 3 ]
A second typical defect is from poor design and construction. An example of this would be a ceramic piece with a handle too thin to support the weight of the cup. A third manufacturing defect is careless firing: a ceramic piece that has been fired too rapidly or allowed to dry unevenly will crack or break. [4]: p.20
In 2022 Daprato Rigali Studios [9] completed the restoration of Grand Army of the Republic rotunda stained glass dome in the Chicago Cultural Center. [10] The 40-foot diameter Tiffany-designed stained-glass dome had become covered in grime and paint and cut off the natural light that brought out the brilliant colors of the glass. [11]
Preventive methods may include limiting exposure to light to a maximum of 40 years at 100 lux or 80 years at 50 lux, [5] maintaining stable temperature and humidity levels, using safe and proper art handling with gloves and proper art storage, per current professional museum standards such as those from the American Alliance of Museums. [13]
Devitrification in glass art [ edit ] Devitrification occurs in glass art during the firing process of fused glass whereby the surface of the glass develops a whitish scum, crazing , or wrinkles instead of a smooth glossy shine, as the molecules in the glass change their structure into that of crystalline solids.
Rebuild Foundation has also created programs with Hyde Park Arts Center, which is an organization that works with contemporary artists residing in Chicago that work with creating a space for artists to showcase their work, create ideas, impact social change, and create networking, [14] for those living in the Dorchester Art + Housing Collaborative.
Among the museum's collection of furniture is a suite of carved neo-Empire maple chairs by George A. Schastey & Co. of New York, one of the original decorators of the Nickerson House; a rare Chickering and Sons grand piano from the Driehaus Collection; and a Nickerson-era Herter Brothers extension dining table of quarter-sawn white oak.