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The Amazing Spider-Man #31

The Amazing Spider-Man #31

Cover A

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Key factsKey issue

  • 1st appearance of Gwen Stacy
  • 1st appearance of Harry Osborn
  • 1st appearance of Professor Miles Warren

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This is the regular first-print edition (Cover A). Collect the 1 variant cover on their own pages.

Market value

Market value (all grades)

Low
$306
Mid
$500
High
$800

Updated 12 Oct 2026

Graded copies for sale
$210 - $2,800
20 graded copies for sale, Updated 10 Oct 2026

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Reprinted 16x

Aunt May falls deathly ill on Peter's first day of college. Meanwhile, the Master Planner is stealing scientific gadgets.

Cover date

December 1, 1965

On sale date

September 9, 1965

Pages

36

Cover price

$0.12

Rating

Approved by the Comics Code Authority

Editor

S.L

Price history

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Credits

Cover Artist

Alex Ross

Characters

Gwen Stacy (1st appearance); Harry Osborn (1st appearance); Professor Miles Warren (1st appearance); Aunt May Parker; Betty Brant; Dr. Nicholas Bromwell; Flash Thompson; Foxy Briggs; Frederick Foswell; J. Jonah Jameson; Master Planner; Ned Leeds; Otto Octavius; Peter Parker; Spider-Man

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All Covers (2)

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Cover A

Cover A

$500.00

#31

British

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