Expanded version presented in Secret Origins (DC, 1986 series) #16. Rex Tyler's post office box (#28) is given in this story.
Fitch writer credit from Craig Delich and verified by Martin O'Hearn; we previously credited Gardner Fox. Letterer credit from Craig Delich.
Letterer credit added by Craig Delich.
Letterer credit from Craig Delich, verified by Chad Grothkopf.
Page includes many small ads from stamps dealers.
Over two pages.
Only appearance in Adventure Comics. Strip previously appeared in early issues of Action Comics.
Letterer credit courtesy of Terry Gustafson, son of Paul Gustavson.