Vintage Blue and White Swirl Glass Marble

The item is a machine-made vintage marble, likely dating from the mid-20th century. It features a striking blue and white swirl pattern, characteristic of 'cat's eye' or 'agate' style marbles, though the core appears opaque rather than clear. The dominant colors are a vibrant royal blue and an opaque white, swirled together to create undulating bands across the spherical surface. Its size appears to be a standard 'shooter' marble, approximately 5/8 to 3/4 inches in diameter, as it is comfortably held between an adult's thumb and forefinger. The material is glass, which exhibits a smooth, polished finish. There are no readily visible chips, cracks, or significant abrasions, suggesting it is in good to very good condition for a vintage plaything. The surface reflectivity indicates a generally well-preserved state, possibly with minor scuffs consistent with typical use. There are no discernible maker's marks or signatures, which is common for machine-made marbles of this era. The craftsmanship is evident in the consistent spherical shape and the pleasing, symmetrical distribution of the color swirls, indicating a good quality manufacturing process. Its unique swirling pattern and good condition make it a desirable piece for collectors of vintage marbles.