Top 10 cleaning challenges in the CMoG collection

Big Bear (98.4.16): It took two conservators 16 hours over several weeks to clean this sculpture by Sherry Markovitz.

Cleaning objects in the collection is an important part of their care. Dusting and light cleaning (which can be a challenge itself; read about it in this recent blog post, Maintaining the shine) is usually done by the preparators, while the more complete and complicated cleanings are done by the conservators. Most objects will only need to be cleaned by the conservators once after entering the museum’s collection. Read more about how and why we clean our glass in this previously published blog post about Washing Glass.

Here are 10 of the most difficult cleaning challenges found in the glass collection (click on each image for descriptions):


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Astrid van Giffen is the Museum's associate conservator. In 2007, she completed the conservation training program of the Netherlands Institute for Cultural Heritage (ICN) in Amsterdam, with a specialization in glass and ceramics. Her training included internships at the Walters Art Museum in Baltimore, Md, and The Corning Museum of Glass in Corning. Since completing the ICN program, she has worked as a private conservator in Oregon and was the Samuel H. Kress Fellow in Objects Conservation at the Straus Center for Conservation and Technical Studies of the Harvard Art Museum (2008-2009). She also holds a BA (2001) in Classical Studies from Willamette University.

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