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.