X-Men (1963 1st Series) #121 VF+
Published May 1979 by Marvel.
"Shoot-Out at the Stampede!" Part 2 of 2. Guest-starring Alpha Flight (1st full appearance). Story by Chris Claremont and John Byrne. Art by John Byrne and Terry Austin. It's no holds barred super-hero tussle as the Uncanny X-Men square off with Canada's premier super-hero team, Alpha Flight. And hanging in the balance, the fate of Wolverine. NOTE: 1st full appearance of Shaman, Aurora, Northstar, Snowbird, and Sasquatch. Cover price $0.40.