Trinity Brass. Co. antique gold has been achieved through oxidation and is not plated. A special non-chemical process is done to the brass after oxidation to achieve its shine. A protective non-toxic lacquer finish has been applied to each piece. Trinity Brass. Co. antique gold is a rich and shiny gold with a matt old world finish. the same quality as you would find from top designers and department stores. Nickel free, made in the USA.