Vintage marble swirl bowling ball. I am familiar with the variety of materials that bowling balls can come in. However, I can't find the makeup of this exact ball. Others like it that have sold are marked as rubber. This ball could be a urethane ball. I picked this up at an estate sale, so it has not been my personal ball to test to see if it hooks or rolls straight to pick up a spare. It does have some surface scratches, but only one small groove that I can find (See Photos). This is a 16 pound ball! Feel free to reach out with any questions! Thanks for viewing!
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