The Clockwork Archive Puzzle

Four archivists—Ada, Bruno, Cleo, and Darius—each hid one unique item in one unique place.

No item or place is used twice.

Items: Map, Key, Ring, Diary

Places: Desk, Shelf, Vault, Window

Clues

1. Cleo hid her item by the Window.

2. The Key was hidden in the Vault.

3. Ada did not hide the Map, and Ada did not use the Desk.

4. The Ring was not on the Shelf.

5. The Diary was hidden either on the Desk or the Shelf.

6. Bruno did not use the Desk.

7. The Map was not hidden in the Desk.

8. Bruno’s item was metal (so it was not the Map or the Diary).

Question

Who hid which item, and where?