Barton Perreira tortoise Vollmer frames. 50 19-140 HEC Like new condition. No prescription put in. Barton Perreira is an independent brand that sees things differently, taking the time to invest in craftsmanship that produces nothing less than the finest eyewear in the world. Meticulously crafted by hand in Japan, a single pair of Barton Perreira frames takes weeks to refine. Distinguished for their passionate attention to each one-of-a-kind detail, Japan’s leading artisans ensure every facet of Barton Perreira eyewear is brought to life with precision and virtuosity.