Could This Jackie Robinson Top $2 Million? + The Mantle Nobody Knew Existed + National Countdown

Some cards are important. Others become hobby history. Jeremy Lee is joined by Leighton Sheldon to examine two extraordinary vintage cards headed to auction: one of the few known signed 1948 Leaf Jackie Robinson rookie cards and a remarkable signed 1952 Bowman Mickey Mantle with an incredible backstory. The conversation explores rarity, provenance, auction estimates, and why these types of discoveries continue to captivate collectors decades after the cards were produced. Later in the episode, Leighton surprises the Sports Cards Live community with a generous National giveaway before Josh Adams joins the discussion to talk National anticipation and the excitement surrounding some of the hobby's biggest upcoming auctions. Topics include: One of the hobby's rarest signed Jackie Robinson cards The remarkable signed 1952 Bowman Mickey Mantle Why provenance matters Estimating the final auction prices National Sports Collectors Convention excitement Leighton Sheldon's $250 National giveaway Josh Adams joins the conversation The cards everyone will be watching this summer Thank you for listening to Sports Cards Live, your hobby headquarters for news, interviews, auctions, and thoughtful conversations about sports cards and memorabilia. Please support the show! ✅ Follow the podcast so you never miss an episode. ⭐ If you enjoy the show, leave a 5-star rating and review on Apple Podcasts or Spotify. 📺 Subscribe to Sports Cards Live on YouTube for weekly livestreams, exclusive interviews, auction coverage, and hobby discussion. 📚 Pick up a copy of Pops & Comps: The Hobby Guide to Sports Card Prices. 🌐 Visit thehobbyspectrum.com and discover your collector archetype. 📱 Follow Jeremy on Instagram: @jlee_sportscardslive @jlee_cards Sports cards is a lifestyle. Learn more about your ad choices. Visit megaphone.fm/adchoices