An early 20th century openwork diamond set bar brooch, the tapered millegrained openwork bar brooch with three flowerhead details, set throughout with graduated old brilliant, old single and rose-cut diamonds, mounted in white and yellow precious metal, scratched inventory number ‘19890’, in a fitted gilt tooled grey leather case, signed ‘Goldsmiths and Silversmiths Company Ltd’, brooch length 78mm. £400-600