Iron Man, Vol. 1 #96 (1976)

Only A Friend Can Save Him
Agent Jasper Sitwell returns just in time to rescue Iron Man from Ultimo's fury. After recharging his armor aboard Sitwell's S.H.I.E.L.D. issue aircraft, Iron Man heads back to the battle, luring Ultimo underground, trapping him with a cave-in.
Release Date: 1976