METHOD FOR DECORATIVE MODIFICATION OF THE SURFACES OF COINS, MEDALS AND TOKENS MANUFACTURED FROM METALS OR ALLOYS THEREOF HAVING COLD DEFORMATION PLASTICITY AND ARTICLE MANUFACTURED ACCORDING TO SAID METHOD

摘要

The decorative modification method comprises manufacturing a metal blank, treating the surface of said blank by cleaning and polishing, subjecting the front and/or reverse surfaces to cold plastic deformation by embossing a three-dimensional matt decorative element and, adjacent thereto, a flat specular decorative element on said surfaces, with said decorative elements contrasting in terms of class of roughness and tonality. The embossing of the decorative elements is conducted on a locally arranged section or sections of the surface. At the same time as the embossing of the decorative elements, a projection or projections are embossed over the outer contour of the local sections. A mosaic decorative element is mounted on the side of the lateral edge of the projection opposite that edge of the projection which adjoins the local sections of the decorative element, which is formed on plastic deformation, on the surface or on the locally arranged sections of the surface of the blank. Prior to the mosaic decorative element being mounted, the sections of the surface with the three-dimensional and flat decorative elements which are contrasting in terms of class of roughness and tonality are masked. The article comprises, on the front and/or reverse surfaces, a three-dimensional matt decorative element and a flat specular decorative element, said decorative elements having, on the local section or sections of the surfaces, a projection over the outer contour. On the side of the lateral edges of the projection which are opposite those edges of said projection which adjoin the local sections of the three-dimensional and flat decorative elements, a mosaic decorative element is arranged on the surface or on locally arranged sections of the surface of the blank.