Jacob Bromwell has been making quality products in America for almost 200 years. This flask is 100% hand-built out of pure copper, just like the massive copper pots used by distillers for purifying liquids, and features an American Birch stopper true to the decades-old original design. Small imperfections are a natural part of the handmade process and lend charm, depth, and individuality to each piece. Made in USA.