IRON MAN (1968) #255, [Fine (6.0)]

On opposite sides of the world two strange battles take place! In Russia the Crimson Dynamo (aka Valentin Shatalov) challenges the Devastator, while in Los Angeles the armored avenger fights a new villain called Freak Quincy! During the crossworld clashes, each villain draws power from the same orbiting satellite! And in an explosion of electromagnetic energy, Iron Man and the Crimson Dynamo switch bodies! So suddenly Tony Stark is in Russia in Valentin's body inside the dynamo's armor! How will the brilliant CEO of Stark Enterprises escape this entanglement?