This is a stunning early 1900’s American crackle art glass13″vase. Has deep green emerald color. The history of crackle glass date backs to the 16th century. American makers start early 1900’s to present day. One of the primary reasons for creating crackle glass was to hide imperfections. A piece of glass that revealed lines or swirls through it was known as “corded.” The glass was then crackled to cover up the imperfection instead of being disposed.