Superman #22/1977

In "Die Rache eines Toten," Atom—now known as Ray Palmer—ventures into the past using Professor Hyatt’s time machine to investigate a mysterious flaw in the first telephone’s history. Disguised as a 19th-century inventor, he uncovers a sabotage plot tied to Alexander Bell’s groundbreaking invention, racing against time to prevent a historical deception. Written by Paul Kupperberg and illustrated by Steve Stiles, with inks by Bob McLeod and colors by Liz Berube, this 1977 tale blends science and suspense, all wrapped in a striking cover by Jim Aparo.