This is a lot of 76 vintage glass marbles, including rare Cat's Eye marbles made by Vitro Agate. Some of these marbles are machine-made and date back to before 1970. The lot features a variety of styles, with a focus on the unique Cat's Eye design that gives these marbles their distinctive appearance. This collection would be a valuable addition to any toy or marble collector's assortment, offering a glimpse into the past with its retro design and quality craftsmanship.