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dc.contributor.authorLohne, Otto
dc.contributor.authorUlseth, Pål
dc.contributor.authorRisvaag, Jon Anders
dc.date.accessioned2022-04-26T11:58:26Z
dc.date.available2022-04-26T11:58:26Z
dc.date.created2021-09-06T12:22:20Z
dc.date.issued2021
dc.identifier.citationSkrifter. 2021, 4 23-41.en_US
dc.identifier.issn0368-6310
dc.identifier.urihttps://hdl.handle.net/11250/2992838
dc.description.abstractThe paper discusses three topics: (1) the production process of bone-ash cupels from bones in calves’ sculls to finished cupels, (2) cupellation of a silver and a gold alloy with known compositions in replica cupels and (3) how lead oxide is distributed in the cupel after cupellation. Following the precept of Ercker in his treatise published in 1574, the authors’ production of cupels is described in detail, from boiling the calves’ heads to the finished cupels, each with a fine-grained surface layer. The microstructure of bone-ash particles and the flow of molten lead oxide into the cupel in a replica cupel and a cupel found during the archaeological excavations in the Archbishop’s Palace, Trondheim, in 1991–1995 are compared. The experience gained from making cupels and later use of the cupels for cupellation led the authors to the conclusion that the cupels found during the archaeological excavations on the premises of the 16th century Mint in the Archbishop’s Palace were probably produced locally at the Mint. By using his own cupels, the contemporary moneyer might have measured the fineness of precious metals with an acceptable degree of precision.en_US
dc.language.isoengen_US
dc.publisherThe Royal Norwegian Society of Sciences and Letters (DKNVS)en_US
dc.titleFrom Calves' Sculls to finished Bone-Ash Cupels and testing of Precious Meetals. An Investigation of the cupellation in the Mint in the Archbishop's Palace, Trondheim, in medieval timesen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionacceptedVersionen_US
dc.rights.holderThis is the authors' accepted manuscript to an article published by The Royal Norwegian Society of Sciences and Letters (DKNVS).en_US
dc.source.pagenumber23-41en_US
dc.source.volume4en_US
dc.source.journalSkrifteren_US
dc.identifier.cristin1931587
cristin.ispublishedtrue
cristin.fulltextpostprint
cristin.qualitycode1


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