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Image of the Jina Rishabha
Date: 9th century Artist: Unknown Materials: Bronze Dimensions (HxWxD, inches): 9 1/4 x 4 1/2 x 2 3/4 Institution/Owner: Brooklyn Museum Key Treatment Steps
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Summary
This cast bronze sculpture of a Jina is missing one of its original back legs, which was replaced with a sheet of dark metal that was visually dissimilar from the other feet. The metal sheet appeared bent and possibly distorted under pressure. This foot was attached to the underside of the base using a large amount of yellowed, bubbly adhesive. Light green powdery corrosion products were noted in a few locations on the surface of the bronze. These corrosion products were tested for bronze disease and found to be negative. White accretions, possibly residues of polishing compound, were visible within interstices.
The surface was cleaned overall using water, acetone, and ethanol. The adhesive attaching the restoration leg softened with acetone and removed mechanically, eventually allowing for removal of the restoration leg.
A new restoration leg was made from bulked and pigmented epoxy, and joined to the underside of the sculpture using B-48N in acetone. A silicone rubber mold was used to facilitate the creation of a component similar in shape and appearance to the original legs. Golden acrylics were used to inpaint the restoration leg to match surrounding surfaces.
This cast bronze sculpture of a Jina is missing one of its original back legs, which was replaced with a sheet of dark metal that was visually dissimilar from the other feet. The metal sheet appeared bent and possibly distorted under pressure. This foot was attached to the underside of the base using a large amount of yellowed, bubbly adhesive. Light green powdery corrosion products were noted in a few locations on the surface of the bronze. These corrosion products were tested for bronze disease and found to be negative. White accretions, possibly residues of polishing compound, were visible within interstices.
The surface was cleaned overall using water, acetone, and ethanol. The adhesive attaching the restoration leg softened with acetone and removed mechanically, eventually allowing for removal of the restoration leg.
A new restoration leg was made from bulked and pigmented epoxy, and joined to the underside of the sculpture using B-48N in acetone. A silicone rubber mold was used to facilitate the creation of a component similar in shape and appearance to the original legs. Golden acrylics were used to inpaint the restoration leg to match surrounding surfaces.
Treatment Images
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