WHAT BASEBALL CARD IS CONSIDERED THE MOST VALUABLE? August 17, 2017 By Show answer THE 1910 PIEDMONT CIGARETTE CARD OF HONUS WAGNER. THE GREAT PITTSBURGH PIRATE SHORT STOP WAS A STRICT SOUTHERN BAPTIST WHO DISAPPROVED OF SMOKING AND ASKED THAT HIS CARD BE DISCONTINUED. ONLY 20 ARE KNOWN TO EXIST More Baseball QuestionsMore Sports Questions