Jarl Xanthro
Jarl Xanthro
Owner and curator of the "Museum of the 20th Century" in 35th century Metropolis. A visiting Superboy helps Jarl's failing business by performing super feats from his time period for visitors.
A descendant of Luthor who runs the rival "Superman Museum" does not like the competition from Xanthro and Superboy and uses a three-dimensional projector helmet to create a false exhibit that tricks Superboy into believing the 35th century Superman was a criminal who was executed for his crimes.
A grief-stricken Superboy retreats back to Smallville and realizes that the exhibit was a deception when he sees young Lex Luthor working on a two-dimensional projector helmet that is an obvious prototype of the one used by the Luthor of the 35th century. (SB No. 120/1, Apr 1965: "The Fate of Future Superman!")
