Iron Man (1968 1st Series) #113
"The Horn of the Unicorn!" Story by Bill Mantlo. Art by Herb Trimpe, Keith Pollard (pages 2 and 3), and Josef Rubinstein. Cover by John Romita, Jr. and Bob McLeod.
Iron Man battles the deranged Unicorn at the new Stark International complex, while a mystery villain lurks in the background. Cameo appearance by the Jack of Hearts.
