An unlicensed card is referred to as a "broder" in the card collecting jargon.
In 1984, there were four Cubs sets that met this description, as will be seen in this post. Broder's features athletes who are currently employed by a professional sports league. Ed Broder and his son Rob, who worked as freelance photographers at big league games, didn't pay a licensing fee. Broder cards have zero value as an investment. By the middle of the 1990s, MLB had shut down these sets and permanently banned Broder cards.
1984 Ajax Dog Food (unlicensed)-
9 cards that included two Cubs players
1984 O'Connell & Son Ink 8x10 Watercolor Portraits (unlicensed)-
145 cards that included four Cubs players
1984 O'Connell & Son Ink 8x10 Black & White Portraits (unlicensed)-
145 cards that included four Cubs players
1984 O'Connell & Son Ink Series 1 (unlicensed)-
250 cards that included six Cubs players