Hemingway the college deal refers to the fact that you are new to Randalls. Not so young that you are still in school. I didn't mean that....just I was very in to the history of Randall's when I first learned about them.
As for the sheath I don't believe the knives were delivered to NASA with sheaths. The knives were attached to a survival kit and had their own pocket. The handle had a strap around it that had a snap on it and the snap attached to the pocket of the survival kit securing the knife.