Brooches by Miranda Sharpe Petri brooch is handmade in sterling silver with vitreous enamel. The silver is oxidised/ blackened and rubbed back for a softer finish. The front of the brooch is enamelled in matt opaque white with spots of yellow, green and blue. A series of silver buds are cold fixed to the front of the brooch so that they have some movement. The buds are also vitreous enamelled in transparent yellow, green and blue with a glossy finish. The brooch has a double pin to support its weight and measure approximately 5cm in diameter. Features Primary Material : silver Other Materials : enamel and stainless steel Pin Type : double pin Dimensions (mm) : 50 x 50 x 6 One of a Kind : Yes Metal : sterling silver Hallmarked : Yes Cleaning InstructionsThe silver of this brooch shouldn't require cleaning due to its oxidised finish. Cleaning will remove the blackened finish. If the enamel should be come dirty and require cleaning then it is recommended to use an old toothbrush with warm soapy water, gently scrub the enamel surface, wash and dry thouroughly. The white enamel can be re-sealed by rubbing a tiny amount of cooking oil into its surface and wiping clean.