Collectible Cards Fetch Record Prices at Auctions

Postcards from the early 20th‑century "Golden Age" are generally worth only a few dollars, but rare real‑photo postcards can command huge sums. A Babe Ruth real‑photo postcard from around 1915 sold for $564,000, while the world’s oldest known picture postcard fetched just under $50,000 in London. Other notable examples include a 1910 Halloween card at $295, a Nevada ghost‑town view at $688 and a Virginia street scene at $900.

Baseball cards also see dramatic price differences based on rarity, condition and the player featured. The 1952 Topps Mickey Mantle card sold for $12.6 million in 2022, the 1909 T206 Honus Wagner card—often called the "Mona Lisa" of baseball cards—has fetched well over $1 million, and a 1914 Baltimore News Babe Ruth card reached $7.2 million in late 2023. More recent cards such as the 1989 Upper Deck Ken Griffey Jr. rookie card trade for $60‑$100 ungraded, but a PSA‑10 graded copy can be worth several thousand dollars.

Experts note that rarity, grading (condition) and the fame of the subject are the three primary drivers of value across both postcards and baseball cards, prompting collectors to revisit forgotten shoeboxes and estate clear‑outs for potential hidden treasure.