Comic Title: Chamber of Darkness #4
Publisher: Marvel (Magazine Management Co., Inc.)
Address: 625 Madison Avenue, New York, NY
Cover Date: April 1970
On Sale Date: January 15, 1970 Copyright Date December 23, 1969
Source: Library of Congress, Periodicals 1970
Marvel copyright dates beyond April 1969
represent shipping dates NOT newsstand sale dates

Newsstand Date January 15, 1970
Source: Newsdealer Magazine, V24 #11

Frequency: Bi-monthly
Cover Price: $0.15
Page Count: 32
Editor: Stan Lee

Title: "The Man Who Owned the World"
Pages: 7

Writer: Dennis J. O'Neil
Artist: Thomas F. Sutton
Letterer: Jean Simek (Izzo)

Reprinted In:
Weird Wonder Tales #15 (1976)