B. J. S. Electroplating Co. was commissioned by the Worshipful Company of Goldsmiths to make a fibreglass - reinforced polyester mould of a wax model of the coronet that Louis Osman had made using a wooden template .
B. J. S. Electroplating Co. is a precious - metal electroformers .
B. J. S. Electroplating Co. , a precious - metal electroformers , was commissioned by the Worshipful Company of Goldsmiths to make a fibreglass - reinforced polyester mould of a wax model of the coronet that Louis Osman had made using a wooden template .