The T206 "Gretzky" Honus Wagner is the most famous baseball card in the world. And, as the art world readily illustrates, it may be that no matter what was done or not done to "The Card," its value really does lie in the eye of the beholder. (14:02)

30 for 30 Shorts: Holy Grail: The T206 Honus Wagner (14:02)

LAGUNA NIGUEL, Calif. -- A 1909 Honus Wagner baseball card has sold at auction for $403,664.

Neither the buyer nor the seller of the T206 card was announced by SCP Auctions, which said online bidding ended Sunday.

A 1952 Topps Mickey Mantle rookie card sold for $268,664 and a bat used by Jackie Robinson during 1949, when he was voted NL MVP, sold for $201,851.

An autographed game-worn home jersey from the Chicago Cubs' Ernie Banks sold for $151,652.

All prices include commissions.