Captain America (Marvel, 1968 1st Series) #114
Cover by John Romita. The Avengers have a cameo in "The Man Behind the Mask!", script by Stan Lee, pencils by John Romita and Sal Buscema, inks by Sal Buscema.
After convincing the American public that Steve Rogers was a fake identity, Captain American walks around in Manhattan, contemplating on what to do with his life. He realizes he is more Cap than Steve, and decides make a more normal life for himself instead of being an Avenger...