Okay, this one is (and I'm repeating some of the other's observations, so my apologies), the heads are Ghidorah, Godzilla (with Ultraman's eyes!), Kong (from KKE with Daimajin's helmet), Ragon's neck scales, Gappa's torso, Red King's arms, Baltan's claws (with Ultraman's Spacium Beam), Kemlar's backplates, Rodan's wings, Gomora's tail, above the tail are the eyes of Ganma (a monster from AKUMA-KUN), and Gamera's legs (with jet nozzles). Art is circa 1967.
Whew!