2024 Leaf Metal Signature Series Box. This Product Is Scheduled To Release On 05/31/24. Configuration: 1 pack per box. 2 cards per pack. Leaf is proud to announce a newly revamped and reinvigorated Signature Series Edition! – Look for new themes, tons more multi-signed cards, insriptions, and some exciting new desgins to bring this product into the hierarchy of signature heavy releases! – Look for amazing and famous background artwork and see how many you can identify! Box Break: – 2 1/1 Autograph Cards.