: His "Last Dance" game-worn and signed jersey sold for a record-shattering $10.1 million in 2022. Starting Your Own Collection
: Still the most sought-after name in the hobby. A single signed baseball can fetch over $388,000. sports autographs
Some signatures are so rare they are considered the "crown jewels" of sports collecting. : His "Last Dance" game-worn and signed jersey
: Use a blue or black Sharpie for photos and cards, but always use a Bic clear round stick pen for baseballs to prevent the ink from fading over time. sports autographs
You don't need millions to start. Many collectors use the method, sending items with a polite letter and a self-addressed stamped envelope (SASE) directly to athletes.