3Com III Handbook page 15

Protective flip cover
The cover protects the Palm III organizer screen when it is not in use
and helps reduce glare while you use your Palm III organizer. You can
open the cover so that it is at an angle, open it fully, or remove it
altogether by pulling the cover out of the holes on the sides of the Palm
III organizer. To reattach the cover, reinsert the pegs in the holes.
Chapter 1 Page 7