51-18-140. Named after explorer, John Oxley, this frame combines lightweight titanium that is plated in 12k silver ,18k gold, or 24k gold and a thin acetate silhouette to create a luxurious two-tone look. It is adorned with high quality enamel and intricately etched insets on precious metal. Japanese cotton-based acetate temple tips and a hidden spring hinge. Individually numbered and handmade in Japan from the world’s finest artisanal craftsmen.