Description - Bond Boyd Gold Filled 3D Trillium Brooch. A three dimensional vintage gold filled trillium brooch by Canadian designer Bond Boyd who was in business in the 1940s and 1950s. The brooch is 2.5 inches wide by approx. 2 inch tall it has the safety C catch pin. The naturally curved leaves of the trillium are brushed with polished edges and the centre and stem of the flower are also polished. Bond Boyd and G.F are marked on the back of this beautiful brooch which is in excellent condition.