Fantastic Four #176
"Improbable As It May Seem -- The Impossible Man is Back in Town!"
November 1976
The FF return to Earth with the Impossible Man, who visits the Marvel offices
reprinted in
*
44 Years of Fantastic Four
2005, in collection
(2005*)
*
Fantastic Four Visionaries: George Perez TPB #1
2005, in collection
(2005*)
*
Marvel Digital Comics
no date
(no date)