Tony Stark was a rich inventor who had the good life. Until one day, a Chinese crime lord kidnapped him, however in the process, Tony got shot in the heart. So he built a rechargeable chest plate that kept him alive. With the help of another kidnapped scientist, he built a bulky grey Iron Man suit (later he spray painted it gold). Iron Man (Tony) escaped, but the other scientist died. Later, he went though some fashion changes. His foes include the Crimson Dynamo and the Titanium Man ( Russian versions of himself), the super flexible Scarecrow (not to be confused with the Batman foe), the Mandarin (has alien rings each with a different power), the psonic M.O.D.O.K a.k.a M.O.D.O.C (who is basically a giant head with limbs), Grey Gargoyle (what ever touches his right hand turns to stone), the monstrous Fin Fang Foom, Blacklash and Blizzard (has water and ice manipulation).
Tales of Suspense issue #39, 46, 50, 51 and 69