Comic Title: Superman #17
Publisher: DC (Superman, Inc.)
Address: 480 Lexington Avenue, New York, NY
Cover Date: Jul/Aug 1942
On Sale Date: May 6, 1942 Newsstand Date May 6, 1942
Source: House Ad, Action Comics #49, Page 16

Copyright Date May 5, 1942
Source: Library of Congress, Periodicals 1942
Until 1958 DC did not report actual on sale dates to the copyright office
The publication dates listed in LoC records are NOT release dates.

Frequency: Bi-monthly
Cover Price: $0.10
Page Count: 64
Editor: Fredric Whitney Ellsworth

Title: "Muscles For Sale"
Pages: 13

Feature(s):
Superman (of Earth-2)

Writer: Jerry Siegel
Artist: John Sikela

Reprinted In:
Superman Archives Vol. 5 HC (2000)
Superman Chronicles Vol. 9 TPB (2011)
Superman:The Secrets of the Fortress of Solitude TPB (2012)
Superman:The Golden Age Omnibus Vol. 3 HC (2017)
Superman:The Golden Age Vol. 5 TPB (2020)

Feature Character(s)

• Superman (last appearance in Superman #17; next appearance in Superman #17)

Supporting Character(s)

• Lois Lane (last appearance in Superman #17; next appearance in Superman #17)
• Perry White (last appearance in Superman #17; next appearance in Superman #17)

Villain(s)

• Mike Mosby (a gym owner; no further appearances)
• Jake Massey (a hypnotist; no further appearances)

Other Character(s)

• Mr. Brandt and his wife (no further appearances)
• Nat Folsom (a banker; no further appearances)
• Various members of Mosby’s gym (no further appearances)

Comments:
This story features the debut of Superman’s secret citadel in the mountains, a precursor to the Fortress of Solitude. The citadel is used to store trophies and contains a special exercise room.

Synopsis:
A few respected businessmen of poor physical stature commit robberies in which they use physical prowess. Superman captures one of them and links them to Morby’s gym. He joins the gym as Clark Kent and finds that the men there are being hypnotized, then used to commit crimes. Superman breaks up the racket and exposes the real crooks, freeing the businessmen from the hypnotic influence.