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EN
A Gothic painting "Christ in a Mystical Press”, hanging onthe west wall in the vestry of St Mary’s Church in Stargard Szczeciński, dates back to 1400. Hie painting on the west wall in the vestry of St Mary’s Church depicts Christ embracing the Cross and standing on the press for grape squeezing as well as Our Lady kneeling on the righ side. In 1971 the left part of the painting was ruined unintentionally by taking the plaster off the base. There remained a few thousand pieces of plaster in different sizes ranging from 1 dem* to 0.5 cm*. After numerous attempts to rescue the painting, basing on a protograph from before 1945 the drawing (in 1:1 scale) was put on the wall by means of epidiascope and employing, in the absence of a clear drawing of the painting as well as varying thickness of the plaster, characteristic traces on bricks, hollows and bulges, scratches and refits, the negatives of which were impressed in plaster; all ruined part of the painting was put anew on the same place, gluing pieces of plaster with a solution of vinyl polyacetate and fine sand. The whole of the paining was cleaned, while powdered paint was fixed with 2—3°/i water solution of vinyl polyacetate and polyvinyl alcohol with sodium-5-chlorophenolan. Part of the painting sticking to the base, in which plaster got detached, was fixed with a water solution of vinyl polyacetate. Missing plasters were made up with lime- and sand mortar, and horizontally hatched with dry dyes and polyvinyl alcohol.
EN
The co n ten ts of th e p re s e n t re p o r t consists in conse rv a tio n of th e 17th c e n tu ry sg ra ffito decoration (256X312 cm) on a w a ll of th e town house in Z a ja z dowa s tre e t a t Trzeb iatów. The su b je c t of th is wo rk is an e lep h a n t w ith its k eeper. The sg ra ffito in q u e stion was a lre a d y two times su b d u ed to co n se rv a tio n tre a tm e n ts , n amely in 1895 an d in 1914. As a r e s u lt of th e s e tw o re s to ra tio n s a lm o st one q u a r te r of o rig in a l p la s te r was lo st an d th e th u s p ro d u c ed losses w e re filled w ith lim e -sa n d and cemen t m o rta rs , an d la te r on coated w ith two lay e rs of oil p a in t o v e r-p a in tin g s. The chemical in v e s tig a tio n s c a rrie d out on th e p re s e rved p o rtio n s of sg ra ffito h av e shown th a t th e lime- -s a n d p la s te r 1 cm th ick was la id in one la y e r an d th e n coloured g rey by m e an s of charcoal. On this g ro u n d was co n seq uen tly laid a th in g ro u n d c o n ta ining yellow ochre an d th e hollow cut d raw in g was made. P rio r to s ta rtin g th e co n se rv a tio n it h a s beer, sta te d th a t some 50 p e r cen t of p la s te r had b liste red an d c ra ck ed th u s showing n um e ro u s losses w h e re a s th e en tire su rfa c e was stro n g ly p o llu ted w ith ta r and flak in g p a in t th a t both caused th a t th e d raw in g is a t p re s e n t poorly legible. D u rin g th e p re s e n t co n se rv a tio n all th e la te r p la s te r su p p lem en ta tio n s and o v e r-p a in tin g s w e re removed. The oil p a in t was removed by means of p a ra f fin p a ste with a n a dm ix tu re of organic solvents. The b liste red p la s te r was fix ed w ith aq ueous solution of “P rim a l AC-33” (a k in d of ac ry lic resin) w ith an add itio n of sodium p e n ta c h lo ro p h e n o la te while th e m a jo r b lis te rs w e re a d d itio n a lly re in fo rc ed w ith th e use of copp e r w ire “sp id e rs ” fix ed w ith epoxide resin. To fix th e p a in tin g th e whole was s a tu ra te d w ith lime w a te r. The p la s te r losses w e re filled w ith lim e -sa n d m o rta r co ntaining an a dm ix tu re of charcoal. On completion of th e ab ove tre a tm e n ts a new lime p rim e r, con ta in in g yellow ochre has b een laid an d th e missing fragm e n ts of d raw in g w e re reco v ered . The re to u ch e s w e re e x e cuted w ith h o rizo n ta l yellow ochre lines w ith th e use of lime w ith “P rim a l AC-33” an d sodium p e n ta c h lo rp h en o la te addition.
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