Psion Organiser II
Oldie but goody: Psion Organizer II (two)
Its still used in the homeopathy (Bach flower extracts etc).
Modell XP with 2-lines display.
If you grow up in the early 80ies, this is a piece of your youth.
Check this great site about the Org II: LINK.
What you get: used, full working Org II XP.