Brooches by Miranda Sharpe Microbe brooch is handmade in sterling silver with vitreous enamel. The brooch comprises a silver base with soldered ovals. The brooch is enamelled in a pale blue which is overlaid with crackled pink & orange across the centre. The brooch has a stainless steel pin.Designed and handmade by Miranda Sharpe. Features Primary Material : silver Other Materials : enamel and stainless steel Pin Type : pin Dimensions (mm) : 50x40x1 One of a Kind : Yes Metal : sterling silver Hallmarked : No Cleaning InstructionsIt is recommended that the brooch is cleaned in warm soapy water using an old toothbrush, ensuring thorough rinsing and drying afterward. A silver cloth may also be used.