Comic Title: New Adventures of Superboy #23
Publisher: DC (DC Comics Inc.)
Address: 75 Rockefeller Plaza, New York, NY
Cover Date: November 1981
On Sale Date: August 20, 1981 Newsstand Date August 20, 1981
Source: Comic Reader, #193

Newsstand Date August 20, 1981
Source: Comics Journal, #65

Newsstand Date August 20, 1981
Source: Amazing Heroes, #3

Newsstand Date August 20, 1981
Source: Daily Planet, Vol. 81 #11

Copyright Date July 28, 1981
Source: Library of Congress, Copyright Office 1981
DC publication dates beyond April 1981 listed by the LoC
represent shipping dates NOT newsstand sale dates

Frequency: Monthly
Cover Price: $0.60
Page Count: 32
Editor: Julius Schwartz

Title: "The Day of the Secret Signal"
Pages: 8

Feature(s):
Superboy (of Earth-1)

Writer: E. Nelson Bridwell
Penciller: John Calnan
Inker: Joe Giella
Letterer: Milton Snapinn
Colorist: Jerry Serpe

Feature Character(s)

• Superboy (last appearance in Superboy #88; next appearance in Superboy #88)

Supporting Character(s)

• Jonathan Kent (last appearance in Adventure Comics #282; next appearance in Superboy #88)
• Martha Kent (last appearance in Superboy #87; next appearance in Superboy #88)
• Police Chief Parker (last appearance in Superboy #123; next appearance in Superboy #88)