Topps has been making baseball cards since 1952, the collector's market is willing to pay top dollar for some of them.

The bidding for the card is already nearing $400,000, breaking previous Mantle records, and it could challenge a Jackie Robinson card ... case of the Mantle 1952 Topps card, the top price paid ...

Expanding on the success of the MLB Debut Patch, Topps, MLB and Nike have partnered to recognize baseball's elite performers ...

A special piece of Jackie Robinson memorabilia is about to hit auction ... and TMZ Sports has learned it could fetch over $400K!! The 1948 Leaf card is regarded as Robinson's true rookie card ...