Whilst he was working for the Antiquities Department of Cyprus, Kleanthis restored many ancient artifacts these are just two of them.
Pithari restored for the Polis Museum Cyprus
This sarcophagus was found with half of it's lid. Kleanthis carved another piece exactly replicating the existing half.
The publication "The Sarcophagus of Pallaipafos" mentions Kleanthis' role in it's restoration (He also drew the plans for the excavation of this tomb)