{"product_id":"ryne-sandberg-leaf-metal-1950-blue-shimmer-1-1-pre-production-proof","title":"Ryne Sandberg Leaf Metal 1950 Blue Shimmer 1\/1 Pre Production Proof","description":"Rare 1\/1 pre-production proof of Ryne Sandberg from Leaf Metal's 1950 series. This exclusive blue shimmer variant showcases premium card stock with distinctive metallic finish and vibrant coloring. A one-of-a-kind collectible piece perfect for serious Sandberg enthusiasts and vintage card collectors. Exceptional condition and authenticity make this a standout addition to any collection.","brand":"Cardboard Superstars","offers":[{"title":"Default Title","offer_id":43463101808703,"sku":null,"price":8.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/9506\/7199\/files\/Document_20260623_0017.jpg?v=1782565382","url":"https:\/\/www.cardboardsuperstars.com\/de\/products\/ryne-sandberg-leaf-metal-1950-blue-shimmer-1-1-pre-production-proof","provider":"Cardboard Superstars","version":"1.0","type":"link"}