Inks, formerly credited to Mortimer, look to be by regular Superman inker Stan Kaye.
This is the first issue with no by-line credit to Siegel and Shuster. One of the rare issues in which Clark Kent actually changes to Superman in a phone booth.
The script for this story is credited as possibly "Writer S" by Martin O'Hearn.
Sequence added by Saltarella via the GCD Error Tracker.
The cruder inking style confirms the hand of Roussos.