There are 9 Liberace trading cards tracked on HobbyCardIndex, spanning Baseball. The most valuable is the Liberace #6 at $6.25 raw.
Source: HobbyCardIndex · Updated daily · https://hobbycardindex.com/players/liberaceLiberace Cards
9 cards · Baseball
All Liberace Cards
Liberace #6
$6.25
Liberace [SP Variation] #75
$4.45
Liberace [Mini Smith'S Mello Mint] #75
$3.42
Liberace [Mini Hindu Red Back] #75
$2.99
Liberace [Mini Croft'S Swiss Milk Cocoa] #75
$2.55
Liberace [Mini Hindu Brown Back] #75
$1.75
Liberace #75
$1.57
Liberace [Minis Mono Green Back] #75
$1.50
Liberace #2
$1.05