Here's yesterday's tale...
...but from the original Matt Baker/Al Williamson art!
Note the areas "whited out", probably at the request of the Comics Code Authority!
BTW, note that in the story, Dr Talbot's right side is altered, but on the cover, his left side is affected!
Let's look closely at that final panel...
Dr Talbot's right side has been totally-whited out.
Was it still metallic?
And his face originally wasn't happy!
Did the original ending show him at the beginning of the process, wondering if it would succeed, and leaving the door open for a sequel if it didn't?
Was the Comics Code Authority responsible for the odd changes?
We'll never know...