If i were a hero, I'd be Martin Luther (Part 4488).....

 Superhero Anydays

Unsure of the artist, maybe Sal Buscema, not sure.  Anyway, this is an Avengers lineup from 1974. 

Iron Man, Black Panther, Scarlet Witch, Vision, Thor.

Not a big lineup, but plenty powerful. 

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And today we also have some Golden Age, WWII era cosplay.  Earth-2's Flash and The Shadow.

POLT