A PSA 8-graded 1952 Topps Mickey Mantle baseball card is the headline lot of SCP Auctions' online sale, which closes on December 6.
Bidding on the lot stands at $185,030.
It is the most valuable card issued in the post-war era and depicts the popular New York Yankees player with a bat over his shoulder.
The record for a Mantle baseball card stands at $282,000 - set for a PSA 9-graded example of the 1952 Topps issue in 2008.
SCP comments: "Today, Mantle's 1952 Topps issue is royalty in the field of card collecting. It is the most recognized and coveted post-war issued baseball card, and next to the T206 Honus Wagner, stands as the icon of the hobby."
A PSA 1-graded T206 Honus Wagner card is also on offer in the sale with a current bid of $156,925.
SCP describes the card as "an icon, and a part of classic American Folklore. Owning 'a Wagner' is a dream for every collector in America familiar with its legend.
"Among the privileged fraternity of collectors who are able to fulfill their dream of owning a T206 Wagner in any grade, it has become exceedingly rare that one is willing to part with what is looked upon as a crowning achievement in the field of card collecting.
"To date, it is estimated that only about 60 total examples of the T206 Wagner are known to exist."
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