This is a fantastic Master Marble "Sunburst" Rainwater Blue Base measuring .655 inches in diameter. The marble is machine made and was produced in the United States before 1970. The sunburst style of the marble is simply stunning and is sure to catch the eye of anyone who sees it.The brand of this marble is Master Marble, and it is a great addition to any collection. This item falls under the categories of Marbles and Toys & Hobbies. Overall, this is a unique and special piece of history that would make a wonderful addition to anyone's collection. This one is in excellent condition.