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| | JAIC 1991, Volume 30, Number 2, Article 1 (pp. 115 to 124) |
 | | The now-dark mantle of the Virgin in the Madonna and Child (Galleria Nazionale, Perugia)—formerly part of a polyptych most probably designed for the high altar of San Domenico in Perugia sometime after 1304 (Teuffel 1979)—is azurite, flened by a layer of discolored varnish caught in the matrix of azurite particles. |
 | | The colors used in Polyptych No. 28 (Siena, Pinacoteca), which is usually dated just before the Maestà of 1308–11, are particularly difficult to interpret with the naked eye because of the distorting effects of a thick layer of yellow varnish (Torriti 1980, 51, color plate). |
 | | Stubblebine (1979, 1:65) tentatively associates the work with a polyptych that was on the high altar of the abbey church of San Donato in Siena, whereas White cautiously suggests a location in a Dominican institution because of the inclusion of Sts. |
| aic.stanford.edu /jaic/articles/jaic30-02-001_3.html (1821 words) |
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