A German, Belle Époque, diamond fringed, openwork necklace, with alternating floral clusters and single, old mine-cut diamonds, with a removable diamond fringed swag, connected by a hook at each floral cluster, comprising eight old cut-diamond drops, in pear shaped mounts, with an estimated total diamond weight of 20.00ct, mounted in silver-upon-gold, in an H. Bückmann, Hannover box. Circa 1905. Hermann Friedrich Wilhelm Bückmann, was a royal court jeweller, goldsmith and silversmith...