{"product_id":"vintage-west-virginia-swirl-marbles-uv-reactive-uranium-cadmium-25-pc-collection","title":"Vintage West Virginia Swirl Marbles UV Reactive Uranium Cadmium 25 Pc Collection","description":"\u003cp\u003eA classic vintage West Virginia glass marble collection showcasing mid-century American craftsmanship. Originating from historic West Virginia manufacturers—such as Ravenswood Novelty Works and Alley Agate Company—these multi-colored swirls feature vibrant opaque ribboning encased in crystal-clear and tinted base glass. Collector appeal is heightened by specialized glass formulation characteristics, including vivid fluorescent green uranium glass and fiery orange-red cadmium glass reactions under ultraviolet blacklight. Displaying iconic swirl patterns, ribbon trails, and classic color combinations, this grouping represents the golden age of machine-made American marble manufacturing, making it an essential acquisition for vintage glass and marble collectors.\u003c\/p\u003e","brand":"My Consignment Store","offers":[{"title":"Default Title","offer_id":53826256666987,"sku":"MB2","price":65.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0968\/0669\/9371\/files\/IMG_5553.jpg?v=1788904706","url":"https:\/\/myconsignmentstore.com\/products\/vintage-west-virginia-swirl-marbles-uv-reactive-uranium-cadmium-25-pc-collection","provider":"My Consignment Store","version":"1.0","type":"link"}