This Christensen Agate Co. striped opaque marble is a rare find for collectors. With its two seam design and near mint quality, it's sure to impress. Made in the United States before 1970, this machine-made marble is a true piece of history. Its unique style and excellent quality make it a must-have for any marble enthusiast. Add this rare gem to your collection today! Mint - condition, size is 5/8ths . I combine shipping on multiple wins, thanks for looking.