{"id":14664,"date":"2016-05-30T22:59:14","date_gmt":"2016-05-31T03:59:14","guid":{"rendered":"http:\/\/www.conservators-converse.org\/?p=14664"},"modified":"2016-05-30T22:59:14","modified_gmt":"2016-05-31T03:59:14","slug":"joint-44th-aic-annual-meeting-42nd-cac-accr-annual-conference-carlo-crivellis-st-george-slaying-the-dragon-at-the-isabella-stewart-gardner-museum-technique-and-restoration","status":"publish","type":"post","link":"https:\/\/resources.culturalheritage.org\/conservators-converse\/2016\/05\/30\/joint-44th-aic-annual-meeting-42nd-cac-accr-annual-conference-carlo-crivellis-st-george-slaying-the-dragon-at-the-isabella-stewart-gardner-museum-technique-and-restoration\/","title":{"rendered":"Joint 44th AIC Annual Meeting & 42nd CAC-ACCR Annual Conference \u2013 \u201cCarlo Crivelli's St. George Slaying the Dragon at the Isabella Stewart Gardner Museum: Technique and Restoration.\u201d Speaker: Gianfranco Pocobene, May 17"},"content":{"rendered":"

\"altarpiece-full\"<\/a> <\/em>
\n An Altarpiece Reunited<\/em>.\u00a0 Isabella Stewart Gardner Museum.\u00a0 2015.\u00a0 Web.\u00a0 30 May 2016 <http:\/\/crivelli.gardnermuseum.org\/altarpiece>.
\nCarlo Crivelli’s St. George Slaying the Dragon<\/em> was completed in 1470 as one of six panels in the Porto San Giorgio Altarpiece. \u00a0After the church was demolished in 1803, this altarpiece was disassembled and individual panels dispersed to collections throughout Europe and the United States.\u00a0 The Isabella Stewart Gardner Museum (ISGM) acquired St. George Slaying the Dragon<\/em> panel in 1897.
\nSince arriving at the museum, Carlo Crivelli’s painting has undergone two conservation treatments: one by George Stout during 1934-1935 and the other by Pocobene and his team during 2013-2015. \u00a0The 2013-2015 treatment was conducted in anticipation of the ISGM’s exhibition Ornament and Illusion: Carlo Crivelli of Venice<\/em> (10\/22\/2015\u20131\/26\/2016).\u00a0 This was the first exhibition featuring Crivelli to be held in the United States and the St. George<\/em> panel was selected to be one of the centerpieces.
\nSt. George<\/em> was constructed using traditional Venetian techniques and materials including egg tempera paint, ornamental relief, and gold leaf gilding.\u00a0 These layers were visible along some of the periphery edges.\u00a0 Worm tunnels in the upper right edge indicate the poplar panel had previously been trimmed-down, likely during the time the six altarpiece panels were separated.\u00a0 Low relief forms, known as pastiglia, were built-up in the armor, halo, forehead gemstone, and the horses bridal and reigns.
\nIn preparation for the Ornament and Illusion<\/em> exhibition, an extensive examination was performed including X-radiography, IR, RTI, XRF, and SEM analyses.\u00a0 The resulting X-radiograph revealed lead white in the original paint layers as well as dense lead putty fills during the previous restoration.\u00a0 Infrared reflectography revealed both carbon black ink underdrawing and contour line reinforcements in bone black paint (the presence of this paint made it difficult to discern the underdrawing).\u00a0 Reflectance transformation imaging revealed the fish scale textures in the armor and sword hilt.\u00a0 X-ray fluorescence revealed lead white, earth pigments, vermillion, red lake, and azurite in the blue-scale fish pattern, and silver in the armor (indicating that the brown-black color is actually tarnished silver leaf).\u00a0 Scanning electron microscopy analysis was performed by Richard Newman at the MFA Boston.\u00a0 After cross sections from the armor were analyzed with SEM, the presence of silver leaf was confirmed, conversion of the silver leaf to a silver sulfide, and a surface layer of bone black covering the leaf.\u00a0 In addition to the technical analyses, images from 1926 and documentation from the 1934-1935 restoration were also referenced.
\n 
\n\"NormalLight_vs_IRR\"<\/a>\u00a0 \"NormalLight_vs_RTI\"<\/a>
\n\"XRF3\"<\/a>
\n 
\nDuring the 2013-2015 treatment, the cleaning process focused on removing grime, the old PVA varnish, yellowed wax coating, and old restorations that no longer matched the original paint layers.\u00a0 Fills, inpainting, and regilding was employed to restore the panel painting.\u00a0 In order to maintain its aged appearance, the 23k gold leaf and shell gold applied in a few selected areas of the sky and abraded pastiglia to reintroduce more vibrancy and hint at the original finish.\u00a0 If you would like to learn more about this treatment or about the Ornament and Illusion<\/em> exhibition, please visit: http:\/\/crivelli.gardnermuseum.org\/beneath-the-surface
\n 
\n\"2013Before&2015After\"<\/a>
\n 
\nAbout the authors:
\nGianfranco Pocobene<\/strong> earned his M.A. in Conservation from Queen\u2019s University and holds a Certificate of Advanced Training in Paintings Conservation from the Harvard Art Museums. For the past thirty years, Pocobene has worked as a paintings conservator in the United States and Canada, and for the past twelve years, he has been the John L. and Susan K. Gardner Chief Conservator at the ISGM.
\nJessica Chloros<\/strong> earned her M.S. in Art Conservation from the Winterthur\/University of Delaware Program in Art Conservation.\u00a0 For the past eight years, Chloros has worked as an associate objects conservator at the ISGM.
\nRichard Newman<\/strong> earned his B.A. in art history from Western Washington University, M.A. in geology from Boston University, and Certificate from the Center for Conservation and Technical Studies, Fogg Art Museum, Harvard University.\u00a0 For the past thirty years, he has worked as a conservation scientist at the Museum of Fine Arts, Boston.\u00a0 Newman is currently the Head of Scientific Research at the MFA, Boston.<\/p>\n","protected":false},"excerpt":{"rendered":"

An Altarpiece Reunited.\u00a0 Isabella Stewart Gardner Museum.\u00a0 2015.\u00a0 Web.\u00a0 30 May 2016 <http:\/\/crivelli.gardnermuseum.org\/altarpiece>. Carlo Crivelli’s St. George Slaying the Dragon was completed in 1470 as one of six panels in the Porto San Giorgio Altarpiece. \u00a0After the church was demolished in 1803, this altarpiece was disassembled and individual panels dispersed to collections throughout Europe and … Continue reading “Joint 44th AIC Annual Meeting & 42nd CAC-ACCR Annual Conference \u2013 \u201cCarlo Crivelli's St. George Slaying the Dragon at the Isabella Stewart Gardner Museum: Technique and Restoration.\u201d Speaker: Gianfranco Pocobene, May 17”<\/span><\/a><\/p>\n","protected":false},"author":196,"featured_media":14007,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"footnotes":""},"categories":[2,16],"tags":[76],"class_list":["post-14664","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-annual-meeting","category-specialty-sessions","tag-aics-44th-annual-meeting"],"_links":{"self":[{"href":"https:\/\/resources.culturalheritage.org\/conservators-converse\/wp-json\/wp\/v2\/posts\/14664","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/resources.culturalheritage.org\/conservators-converse\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/resources.culturalheritage.org\/conservators-converse\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/resources.culturalheritage.org\/conservators-converse\/wp-json\/wp\/v2\/users\/196"}],"replies":[{"embeddable":true,"href":"https:\/\/resources.culturalheritage.org\/conservators-converse\/wp-json\/wp\/v2\/comments?post=14664"}],"version-history":[{"count":0,"href":"https:\/\/resources.culturalheritage.org\/conservators-converse\/wp-json\/wp\/v2\/posts\/14664\/revisions"}],"wp:attachment":[{"href":"https:\/\/resources.culturalheritage.org\/conservators-converse\/wp-json\/wp\/v2\/media?parent=14664"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resources.culturalheritage.org\/conservators-converse\/wp-json\/wp\/v2\/categories?post=14664"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resources.culturalheritage.org\/conservators-converse\/wp-json\/wp\/v2\/tags?post=14664"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}