Issue 59
World's Finest (1941-1986) #100
Luthor shrinks himself and tricks Superman into leaving him in the Fortress of Solitude, where he enters Kandor and takes over.
Creators

From
World's Finest (1941-1986) Series
Luthor shrinks himself and tricks Superman into leaving him in the Fortress of Solitude, where he enters Kandor and takes over.

From
World's Finest (1941-1986) Series