Clear Glass Marbles with Yellow Swirls

The image displays two clear glass marbles, each featuring a distinct internal swirl pattern. These marbles appear to be made of transparent glass with a slight yellowish or amber tint, allowing light to pass through them. Inside each marble, several strands or ribbons of what appears to be yellow or golden-colored glass are suspended, forming a characteristic swirled or banded design. The patterns within are not perfectly symmetrical but rather exhibit an organic, flowing quality, typical of machine-made marbles from the mid-20th century onwards. Each marble is spherical and appears to be approximately 1/2 to 3/4 inch in diameter, a common size for 'shooter' marbles or those used in general play. The surface of the marbles reflects light, indicating a smooth, polished finish, and there are no immediately visible chips, cracks, or significant abrasions, suggesting they are in good to very good condition. Slight surface wear, such as minor scratches, might be present but is not clearly discernible from the image. The manufacturing method likely involves an automated process where molten glass is cut and rolled to form spheres, after which colored glass threads are introduced and swirled before the glass cools and hardens. While specific maker's marks are not present on marbles of this type, the consistent clear glass body with internal colored swirls points towards a mass-produced item. These marbles are likely from the mid to late 20th century.