Amazing Spider-Man #166 (1977)

"War of the Reptile-Men!" Written by Len Wein. Pencils by Ross Andru. Inks by Mike Esposito. Cover by John Romita and Frank Giacoia. It's a classic three-way Christmas confrontation! The Lizard vs. Spider-Man vs. Stegron! The key to victory for the web-slinger is to get the Lethal Lizard (aka Dr. Connors) to fight with him...instead of against him! But the Lizard usually just wants to kill Spidey! In snowy Central Park, the three combatants and a pack of dinosaurs come together for a Jurassic-style rumble! Is a Christmas miracle in the offing for your friendly neighborhood Spider-Man? An uplifting issue!

Key book; first appearance of the Spider-Slayer Mark. Very good/fine condition.