Here are a couple of mock Exhibit cards I made up:
1921 style Buck Weaver.  
1927 style Mickey Cohen.  Prior to beginning his "career" as head of organized crime in Los Angeles, Mickey Cohen was a middling quality professional boxer, fighting as a bantamweight and featherweight.  He doesn't have an Exhibit card.  His record was 60 wins, 25 defeats, 6 draws and 11 no decisions.  He fought two world champions, getting knocked out each time.