The treatment of a longcase clock attributed to Jean-Pierre Latz: alternative approaches to the removal of copper corrosion products on Boulle-style marquetry

A longcase clock attributed to Jean-Pierre Latz from the collection of the Cleveland Museum of Art was treated at the J. Paul Getty Museum in 2012. The clock is dated to 1744 and is decorated with Boulle-style marquetry and elaborate gilt-bronze mounts. As part of the treatment, the tarnished brass...

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Veröffentlicht in:URI:https://journals.openedition.org/techne,
Hauptverfasser: Dorscheid, Jan, Considine, Brian, Khanjian, Herant, Wolfe, Julie, Heginbotham, Arlen
Format: Article ou chapitre numérique
Sprache:Anglais
Veröffentlicht: Technè 2021
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Online Zugang:Accès Université d'Orléans et IFPM
Accès Université d'Orléans et IFPM
Beschreibung
Zusammenfassung:A longcase clock attributed to Jean-Pierre Latz from the collection of the Cleveland Museum of Art was treated at the J. Paul Getty Museum in 2012. The clock is dated to 1744 and is decorated with Boulle-style marquetry and elaborate gilt-bronze mounts. As part of the treatment, the tarnished brass marquetry was to be cleaned and brought into visual balance with the mounts’ gilded surfaces. The application of a peelable protein poultice proved effective in removing copper corrosion products from the brass elements without compromising the marquetry and its engravings. Accompanying research has pointed out the vulnerability of aged turtle shell to the heat and alkalinity related to the application of the protein poultice. As a result of this, precautionary measures could be identified.