This issue has variants.
Letters page comments by Frank Miller.
The copyright registration for the issue reports a publication date of November 11, 1980. However, this date most likely reflects when the direct-sale variant went on sale. The direct-sale variant, i.e. the edition available at most comics stores, was generally available for sale two to four weeks before the newsstand edition.
Page 1 references events in the Daredevil/Punisher story that was pushed back for Code problems.