Fig. 1

Copy of Roman wall painting by the artist José Cuní. The copy has been executed in fresco and partially polished with a hard instrument. At right, detail of the polished area. Unlike in the unpolished areas, the brushstrokes and the stylus-incised outline in the polished areas become flush with the surface, losing their relief. In this case, the polishing treatment does not provide shine to any of the colours (green earth, lime white, yellow ochre, burn sienna, red iron oxide)