Brooches by Clare Hillerby Collage of found original papers on an oxidised silver sheet base with perspex on top and various metalwork elements. Features Primary Material : silver Other Materials : gold, perspex, postcard and stamp Pin Type : double pin Dimensions (mm) : 40x55x4 One of a Kind : Yes Metal : yellow gold 18ct Hallmarked : No Cleaning InstructionsCarefully clean oxidised areas gently with warm water and a soft, old toothbrush, a little household cleaner can be used if necessary, avoiding paper areas. Papers are covered with perspex, to avoid scratching store it in its wrappings. They are not air tight so if water gets in, remove and leave to dry naturally. With all items, avoid contact with perfume, washing up detergents, hair products etc and store away from direct sunlight.