Bar brooch in a case Brooch in case; Brooch of white gold and diamond with cannon closure in box of green velvet with hinged lid from the company Steltman. In the middle; the brochette is set with a brilliant-cut diamond with an open colet. In addition; faceted diamonds have 34 pieces; including four octagones (very small).; Firma gebroeders Rozendaal; Hoorn (North Holland); c. 1914 - c. 1920; white gold; diamond (mineral); doos; faceting; h 0.8 cm x w 7.2 cm w 4.5 gr w 0.45 kt