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From Production to Preservation: Hand-Painted Magic Lantern Slides from the National Museum of Natural History and Science

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Resumo:The present work arises as part of the first systematic investigation on hand-painted magic lantern glass slides resorting to multi-analytical techniques combined with critical analysis of historical written sources on the painting materials and techniques used to produce them. The magic lantern was an optical instrument, used to project images from the seventeenth to the twentieth centuries, that attained great success with high impact on entertainment, science, religion and advertisement. In the framework of this work, five hand-painted magic lantern glass slides from the National Museum of Natural History and Science (University of Lisbon) were studied. The glass support, the colourants and organic media were characterised. The glass was analysed by Micro-Energy Dispersive X-Ray Fluorescence, and the oxide quantification unveiled that the glass belongs to the soda-lime silicate type and was possibly produced between 1870 and 1930 in England. Additionally, considering the standardized size of the slides and the similarity of the subjects represented with other English slides from the nineteenth century, it was possible to narrow the production period of this collection between 1870 and 1900. Ultraviolet-Visible, Micro-Raman and Micro-Fourier Transform Infrared spectroscopies allowed the characterisation of the colourants. The colour palette is composed of Prussian blue, an anthraquinone red lake pigment of animal origin (such as cochineal carmine), an organic yellow whose identification was not yet possible and a carbon-based black pigment. The remaining colours – green, purple and brown – were achieved by mixing the pure pigments. Through infrared analysis, a terpenoid resin such as shellac was identified. The detection of metal carboxylates was essential to assess the state of conservation of the paints. The identification of the main risks that might endanger the collection in study was made, as well as a risk assessment scale. Preventive conservation guidelines were proposed taking into consideration the literature on the preservation of the different materials that compose the magic lantern slides, as well as the results of surveys submitted to national and international museums that hold similar collections.
Autores principais:Rodrigues, Beatriz Maria Barata
Assunto:Magic lantern glass slides Prussian blue Cochineal lake Carbon-based black Shellac resin 19th century
Ano:2019
País:Portugal
Tipo de documento:dissertação de mestrado
Tipo de acesso:acesso aberto
Instituição associada:Universidade Nova de Lisboa
Idioma:inglês
Origem:Repositório Institucional da UNL
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author Rodrigues, Beatriz Maria Barata
author_facet Rodrigues, Beatriz Maria Barata
author_role author
contributor_name_str_mv Vilarigues, Márcia
Santos, Ângela
RUN
country_str PT
creators_json_txt [{\"Person.name\":\"Rodrigues, Beatriz Maria Barata\"}]
datacite.contributors.contributor.contributorName.fl_str_mv Vilarigues, Márcia
Santos, Ângela
RUN
datacite.creators.creator.creatorName.fl_str_mv Rodrigues, Beatriz Maria Barata
datacite.date.Accepted.fl_str_mv 2019-11-01T00:00:00Z
datacite.date.available.fl_str_mv 2020-03-04T10:05:28Z
datacite.date.embargoed.fl_str_mv 2020-03-04T10:05:28Z
datacite.rights.fl_str_mv http://purl.org/coar/access_right/c_abf2
datacite.subjects.subject.fl_str_mv Magic lantern glass slides
Prussian blue
Cochineal lake
Carbon-based black
Shellac resin
19th century
datacite.titles.title.fl_str_mv From Production to Preservation: Hand-Painted Magic Lantern Slides from the National Museum of Natural History and Science
dc.contributor.none.fl_str_mv Vilarigues, Márcia
Santos, Ângela
RUN
dc.creator.none.fl_str_mv Rodrigues, Beatriz Maria Barata
dc.date.Accepted.fl_str_mv 2019-11-01T00:00:00Z
dc.date.available.fl_str_mv 2020-03-04T10:05:28Z
dc.date.embargoed.fl_str_mv 2020-03-04T10:05:28Z
dc.format.none.fl_str_mv application/pdf
dc.identifier.none.fl_str_mv http://hdl.handle.net/10362/93760
dc.language.none.fl_str_mv eng
dc.rights.none.fl_str_mv http://purl.org/coar/access_right/c_abf2
dc.subject.none.fl_str_mv Magic lantern glass slides
Prussian blue
Cochineal lake
Carbon-based black
Shellac resin
19th century
dc.title.fl_str_mv From Production to Preservation: Hand-Painted Magic Lantern Slides from the National Museum of Natural History and Science
dc.type.none.fl_str_mv http://purl.org/coar/resource_type/c_bdcc
description The present work arises as part of the first systematic investigation on hand-painted magic lantern glass slides resorting to multi-analytical techniques combined with critical analysis of historical written sources on the painting materials and techniques used to produce them. The magic lantern was an optical instrument, used to project images from the seventeenth to the twentieth centuries, that attained great success with high impact on entertainment, science, religion and advertisement. In the framework of this work, five hand-painted magic lantern glass slides from the National Museum of Natural History and Science (University of Lisbon) were studied. The glass support, the colourants and organic media were characterised. The glass was analysed by Micro-Energy Dispersive X-Ray Fluorescence, and the oxide quantification unveiled that the glass belongs to the soda-lime silicate type and was possibly produced between 1870 and 1930 in England. Additionally, considering the standardized size of the slides and the similarity of the subjects represented with other English slides from the nineteenth century, it was possible to narrow the production period of this collection between 1870 and 1900. Ultraviolet-Visible, Micro-Raman and Micro-Fourier Transform Infrared spectroscopies allowed the characterisation of the colourants. The colour palette is composed of Prussian blue, an anthraquinone red lake pigment of animal origin (such as cochineal carmine), an organic yellow whose identification was not yet possible and a carbon-based black pigment. The remaining colours – green, purple and brown – were achieved by mixing the pure pigments. Through infrared analysis, a terpenoid resin such as shellac was identified. The detection of metal carboxylates was essential to assess the state of conservation of the paints. The identification of the main risks that might endanger the collection in study was made, as well as a risk assessment scale. Preventive conservation guidelines were proposed taking into consideration the literature on the preservation of the different materials that compose the magic lantern slides, as well as the results of surveys submitted to national and international museums that hold similar collections.
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identifier.url.fl_str_mv http://hdl.handle.net/10362/93760
inst_facet_str urn:organizationAcronym:unl{{{_:::_}}}Universidade Nova de Lisboa
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institution Universidade Nova de Lisboa
instname_str Universidade Nova de Lisboa
language eng
network_acronym_str run
network_name_str Repositório Institucional da UNL
oai_identifier_str oai:run.unl.pt:10362/93760
organization_str_mv urn:organizationAcronym:unl
person_str_mv Rodrigues, Beatriz Maria Barata
publishDate 2019
repo_facet_str urn:repositoryAcronym:run{{{_:::_}}}Repositório Institucional da UNL
reponame_str Repositório Institucional da UNL
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spelling engpt_PTThe present work arises as part of the first systematic investigation on hand-painted magic lantern glass slides resorting to multi-analytical techniques combined with critical analysis of historical written sources on the painting materials and techniques used to produce them. The magic lantern was an optical instrument, used to project images from the seventeenth to the twentieth centuries, that attained great success with high impact on entertainment, science, religion and advertisement. In the framework of this work, five hand-painted magic lantern glass slides from the National Museum of Natural History and Science (University of Lisbon) were studied. The glass support, the colourants and organic media were characterised. The glass was analysed by Micro-Energy Dispersive X-Ray Fluorescence, and the oxide quantification unveiled that the glass belongs to the soda-lime silicate type and was possibly produced between 1870 and 1930 in England. Additionally, considering the standardized size of the slides and the similarity of the subjects represented with other English slides from the nineteenth century, it was possible to narrow the production period of this collection between 1870 and 1900. Ultraviolet-Visible, Micro-Raman and Micro-Fourier Transform Infrared spectroscopies allowed the characterisation of the colourants. The colour palette is composed of Prussian blue, an anthraquinone red lake pigment of animal origin (such as cochineal carmine), an organic yellow whose identification was not yet possible and a carbon-based black pigment. The remaining colours – green, purple and brown – were achieved by mixing the pure pigments. Through infrared analysis, a terpenoid resin such as shellac was identified. The detection of metal carboxylates was essential to assess the state of conservation of the paints. The identification of the main risks that might endanger the collection in study was made, as well as a risk assessment scale. Preventive conservation guidelines were proposed taking into consideration the literature on the preservation of the different materials that compose the magic lantern slides, as well as the results of surveys submitted to national and international museums that hold similar collections.application/pdfpt_PTFrom Production to Preservation: Hand-Painted Magic Lantern Slides from the National Museum of Natural History and ScienceRodrigues, Beatriz Maria BarataVilarigues, MárciaSantos, ÂngelaHostingInstitutionOrganizationalRUNe-mailmailto:run@unl.ptrun@unl.pt2020-03-04T10:05:28Z2019-1120192019-11-01T00:00:00ZHandlehttp://hdl.handle.net/10362/93760http://purl.org/coar/access_right/c_abf2open accessMagic lantern glass slidesPrussian blueCochineal lakeCarbon-based blackShellac resin19th century4679723 bytesliteraturehttp://purl.org/coar/resource_type/c_bdccmaster thesishttp://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://run.unl.pt/bitstreams/395aa918-d606-45fa-b441-2b09881a6699/download
spellingShingle From Production to Preservation: Hand-Painted Magic Lantern Slides from the National Museum of Natural History and Science
Rodrigues, Beatriz Maria Barata
Magic lantern glass slides
Prussian blue
Cochineal lake
Carbon-based black
Shellac resin
19th century
status SINGLETON
subject.fl_str_mv Magic lantern glass slides
Prussian blue
Cochineal lake
Carbon-based black
Shellac resin
19th century
title From Production to Preservation: Hand-Painted Magic Lantern Slides from the National Museum of Natural History and Science
title_full From Production to Preservation: Hand-Painted Magic Lantern Slides from the National Museum of Natural History and Science
title_fullStr From Production to Preservation: Hand-Painted Magic Lantern Slides from the National Museum of Natural History and Science
title_full_unstemmed From Production to Preservation: Hand-Painted Magic Lantern Slides from the National Museum of Natural History and Science
title_short From Production to Preservation: Hand-Painted Magic Lantern Slides from the National Museum of Natural History and Science
title_sort From Production to Preservation: Hand-Painted Magic Lantern Slides from the National Museum of Natural History and Science
topic Magic lantern glass slides
Prussian blue
Cochineal lake
Carbon-based black
Shellac resin
19th century
topic_facet Magic lantern glass slides
Prussian blue
Cochineal lake
Carbon-based black
Shellac resin
19th century
url http://hdl.handle.net/10362/93760
visible 1