Frank Thomas – 1990 Topps Error
During the ‘90s, the most valuable card would be the Frank Thomas one in the Topps set. This is not a regular card either but a specific error one. The card for this Hall of Famer does not come with his name on the front. This error is why it is worth a lot of money. You can expect to get something in the four or five figures for it.

Frank Thomas – 1990 Topps Error
Honus Wagner – T206
The most valuable and famous baseball card of all time must be the Honus Wagner card in the T206 set. It is pretty much a legend in the card collecting circles! Like other cards during this era, the 1911 card was made by a tobacco company as a method to improve the sales of their cigarette products. However, the slugger himself wanted to pull the card for unknown reasons. It is thought that he did not want kids to buy cigarettes just to look for his card. However, there was a research that revealed that the dispute had more to do with the royalties. At any rate, there are not a lot of these cards on the market. This is the reason it is considered the “Holy Grail” of baseball cards! In 2016, one of them sold for $3.3 million.

Honus Wagner – T206