This object is found in Barilzar’s Tower in the Morrowind expansion to Elder Scrolls Online. Barilzar is a highly intelligent Dunmer wizard.
From the looks of it, it appears to be a fantasy equivalent to a cribbage board. I liken it to the “space chess” they had Spock playing on old Star Trek episodes.
I have not found lore in Barilzar’s stuff on what this item might be, but often Bethesda designers are very subtle and hide clues like this in far away places. For example, it would not surprise me to later find some note from Barilzar in another wizard’s tower mentioning losing a game of dark elf cribbage or something similar. The designers have done this hundreds of times.
Has anyone found lore explaining this thing? Dare I even hope for actual rules to Dunmer cribbage?
UPDATE: I found another of these things (possibly a board game) in Menaldinion’s clinic in Suran (Vvardenfel zone). His personality is similar to Barilzar as they are both haughty intellectuals. Perhaps this is a pastime of these types of people? The screen shot from his place is at a different angle.