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In 1888, the founder of the brand replaced the original beige and brown stripes with a square pattern, and added a registered trademark, creating today's Damier checkerboard pattern. In 1896, his son designed a new pattern with bv letters, four-petal flower shape, and positive and negative diamonds in memory of his father. This is the world-famous Monogram presbyopia. On every anniversary of great significance, bv will invite the most popular fashion designers to work hard on the basis of presbyopia, launch joint limited editions, and always set off an crazy (insane) collecting craze around the world, with prices skyrocketing. several times.