This is a DC Comics Justice League Brave & Bold vs Starro the Conqueror, 1960 Reprint. By Loot Crate.
DC COMICS
The Brave and the Bold #28, Starro the Conqueror! (March 1960
BRAVE AND THE Bold #28 CGC .5 1st app The Justice League & Starro
Justice League of America US Comics Silver Age (1956-69) Era
Brave And The Bold #28 Values and Pricing, DC Comics
Starro the Conqueror Justice League of America Brave and the bold
The Brave and the Bold Wonder Woman Superheroes US Comics Silver
The Brave and the Bold Vol 1 28, DC Database
Brave And The Bold #28 Facsimile Edition