Uncanny X-Men #4 (Marvel, 1964 — Cover A)

The Beast again faces the perils of the Danger Room. He is eventually tripped up by a grabbing a false rope to try to swing over a water hazard. Iceman is next through the gauntlet but is too cocky at his young age and is quickly defeated. Angel humiliates him by hanging him from a wall hook. Once Iceman is rescued by Marvel Girl it is time for her test. She opens a box for Professor X which hides a cake. It has been one year since the X-men were first formed.