AMAZING SPIDER-MAN (1963) #87

Peter Parker finally reveals to his friends that he is Spider-Man. Worried that he might be losing his powers, Peter Parker puts a sample of his blood under a microscope, but upon looking at it, it appears too blurred for him to make anything out in it. Peter changes to his Spider-Man identity so that he can give a blood sample to Curt Connors, as he won’t ask Spider-Man to unmask. After struggling to get to Connor’s apartment, Peter finds that it’s deserted, as Curt must be at his Florida lab. As Peter tries making it back home, he remembers that it’s Gwen Stacy’s birthday party that night, and that he hasn’t bought her anything.…