Our Story
The people behind the cardboard
I've been a collector my whole life. I started in the junk wax era, doing odd jobs around the neighborhood for a few dollars and spending every one of them at the local card shop. I can still feel it: tearing open a fresh pack, the cardboard in my hands, hoping my favorite player was inside. Whatever decade you started in, you know that feeling. It's why these simple pieces of cardboard still mean so much.
Today that passion lives in vintage baseball, the heart of Diamond Cardboard. But a great card is a great card, so our collection spans every sport and every genre of collecting. Every piece is hand-picked and one-of-a-kind.
We're a small family business in State College, Pennsylvania, and we've been selling on eBay since 2013 with a 100% feedback rating. That record comes from fair prices, fast shipping, and taking care of every customer. If you're not happy with your purchase, we'll make it right. Simple as that.
Whether you're chasing the last card for your set or a grail you've wanted for years, we want you to feel what we felt as kids. Thanks for being part of our community. Happy collecting!
What We Stand For
Transparency
What you see is what you get: every listing shows the actual card, front and back, described honestly. If something isn't right, contact us and we'll work with you.
Quality
We hand-select every card in our inventory. Each piece is carefully inspected, photographed, and accurately described.
Fair Pricing
No inflated prices. We price every card fairly based on current market conditions, condition, and eye appeal.