Gustav Manz
A piece that was probably exhibited at the 1904 Louisiana Purchase Exposition in St. Louis. According to entry forms submitted by Lawrence, his display—one of the largest at the fair—included an opal matrix brooch labeled "Jean D'Arc" executed by Manz. Like most items for this and other arts and crafts exhibits, the gold surrounding the gem was entirely hand-wrought. Lawrence took design credit, although Manz's output as a designing jeweler suggests he probably collaborated there as well.