In rural India, antique buttermilk containers were often made of clay, brass or copper. These vessels were used to keep the buttermilk cool, which was especially important in hot and humid climates. a popular dairy product that is commonly consumed in Indian households. In India, brass has been used for making containers for centuries because of its durability, non-toxic nature, and aesthetic appeal. This antique brass pot has a rounded body with a darkened brass patina and verdigris oxidation.