Marvel Comics © October 1969, The Avengers #69.  The story is "Let the Game Begin".  Vs the Grandmaster and Kang. In a contest between them, the Avengers are pitted against  the Squadron Sinister. This is the introduction for Hyperion, Nighthawk, Dr. Spectrum and the Whizzer of the Squadron Sinister.

Appearing: The Avengers [Captain America [Steve Rogers]; Black Panther [T'Challa]; Thor [Don Blake];  Goliath [Clint Barton]; Yellowjacket [Henry Pym]; The Wasp [Janet Van Dyne Pym];  Vision]; Tony Stark; Kang the Conqueror; Grandmaster; Ravonna; Growing Man; Squadron Sinister [Dr. Spectrum; Whizzer; Hyperion; Nighthawk]; Dr. Jose Santini

Works by; Script; Roy Thomas   Pencils; Sal Buscema    Inks; Sam Grainger

This book appears (f/vf 65), w/ the expected nics, tics, wear and tear.  Thanks for looking.     xxxx-1903-65