Kobe Bryant and LeBron James's "one-of-a-kind" signature trading cards were put up for public auction.

A "one-of-one" top-tier trading card featuring the autographs of both Kobe Bryant and LeBron James, along with the NBA logo on their game jerseys, was officially put up for public auction this month by the trading card trading platform Alt.

This "Double Logoman Card" from the 2007-08 Upper Deck Exquisite series was kept in the hands of a private collector as an ungraded card for nearly twenty years, remaining unknown to the outside world for a long time.

After the current cardholder took over, he sent it to the professional sports card rating agency PSA last month, where it received a high score of 8 out of 10.

This card comes from the same series as the Kobe Bryant double-signature card, which set a record a year ago for the most expensive sports card at $12.93 million. Its extremely high collectible value also lies in its special year of release.

The 2007-08 season was the only year Kobe Bryant won the regular season MVP award in his career, and it was also the season when LeBron James won his only scoring title with an average of 30 points per game, carrying the historical significance of the peak of these two superstars.

Although the auctioneer Alt did not release an official valuation, the rating agency PSA stated that this is one of the most valuable cards they have graded this year.

According to industry media reports, the bidding process for the card officially began last Friday, and the bids have already quickly surpassed $2 million. The auction is expected to close on September 24th, and there is widespread interest in whether it can challenge the record for the most expensive sports card ever sold.

Image source: Internet