Konserwacja polichromowanych desek z Osieka koło Kościana
The Conservation of Polychromy Boards from Osiek near Kościan

Summary/Abstract: The author describes the course of the conservation of polychromy boards discovered in 1988 in a manor in Osiek near Kościan. The boards covered the wooden construction of a division wall and a ceiling in a staircase and the first floor of the building. Made of coniferous wood of various width and length, and 2,5-4 cm. thick, the boards are hand-worked, with traces left by the tools - a chisel and a plane. The clearly visible texture of the wood shows numerous indentations around the knots and a slightly uneven surface. Chalk-glue, white and thin grounding, and a painted layer (thin tempera - glutinous glue and oil varnish) were placed on this basis. The colour of the polychromy is composed of ochre: yellow, red and brown, whitening, achieved by means of white lead, white elements - chalk with the addition of white lead, and terra di Siena. The polychromy is dated as the 1730s, and its author remains unknown. The original composition configurations were damaged due to the cutting of the boards and their adaptation to a new function, i. e. that of building material. The extant fragments were used for the completion of five compositions intended for museum display. The boards were rendered whole and the painted layer was made permanent by a group of conservators headed by Krzysztof Powidzki. Today, they are displayed in the palace in Trzebiny near Leszno.

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