In the first par of the article the authors describe the evolution of the methods of gilding various objects beginning from the 3rd century B.C. until the 19th century when the galvanic gold-plating technique was invented by G. R. Elkington. The recent years have seen elaboration o f some new ty p e s . of bath for galvanic gold-plating worked out in Poland and, also, invention of the cyanideless bath. The second part o f the paper gives a description of the gold-plating work done for the Royal Castle in Warsaw — as a voluntary public undertaking — by the staff o f the Institute of Precision Mechanics, Warsaw. The components of the tower clock were gold-plated and so were the decorations of the Castle towers and the Royal Chaple. A total of 17.34 kg : of metallic gold was used for the purpose. It is worth stressing employment of galvanic method for gilding such large surfaces, and with so thick a la yer, was one of the first attempts at this kind of proceeding in Poland.
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