Wave-shaped 18ct gold brooch with lower part fusioned with platinum mesh patterning, with a clasp on the back.
Materials and techniques
18ct gold (partially oxidised) with platinum mesh fusion inlay. Very thin (0.1mm) platinum mesh was cut with scissors to a pre-determined design (in this case taken from a textile by Fortuny). The pieces were then arranged on a sheet of 18ct gold (0.75mm) and the gold heated with a flame until the two metals fused. Then followed a process of abrading the surface until the platinum was clearly evident and rolling the sheet to reduce the thickness (to 0.4mm) and to create a uniform surface plane. The surface was then textured by rolling the metal together with coarse emery cloth (obverse) and watercolour paper (reverse). Following this preparation, one side was folded at right angles and soldered (with 'medium' solder) to another angled, textured gold part forming a cruciform section. Each of the 4 flanges was then trimmed and then bent into shape.
After the hinge and clasp were soldered ('easy' solder) and the edges smoothed and finished, the piece was heated with a flame to oxidise the surface. Part of the piece was masked off with lacquer and the oxide cleaned from the back and part of the front by 'pickling' in alum solution. The laquer was then removed, the pin riveted in, and the platinum surface burnished.