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Constglass
FhG ISC
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Objects:

Klausen, Parish Church

Choir I

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The choir windows at the parish church in Klausen illustrate the Seven Sorrows of the Virgin. The axial window depicts the Flight into Egypt (below) and the Crucifixion (above). The windows were made in 1878 by an unknown workshop.

In course of a restoration around 1900 the six ornamental panels at the bottom of the axial window received a cold (unfired) pigment coating with lacquer. Although relatively new, the original paint layer had already fallen into bad condition and had lost considerable paint. The lacquer treatment was intended to conceal the light patches where paint had flaked off and generally to secure the remaining unstable paint. The paint from the test panel 1b is matte and its surface porous. Much paint has been lost.
 

On some segments the contour lines of oxide paint were coated either with Ormocer® or SZA and compared with Paraloid® B72 during a conservation project carried out in 1991 carried out by the stained glass conservation studio of Cologne Cathedral.

More information about the window is available in the Object-Data by Constglass FhG ISC. A short description about scientific investigations can be reached directly sample1 and sample 2.

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