The apparatus is a balance made of brass that has equal arms. Each tray - with a distinctively short suspension system - has a hook at its bottom. The whole balance leans on triangular base with a leveling system. Identifier: ΜΣ 025.0 DataInventory Number: mec22Instrument Categories: Mechanics PlacesLocation: Πρότυπο Πειραματικό Γενικό Λύκειο Μυτιλήνης, Πανεπιστημίου Αιγαίου - Model Experimental High School of Mytilene of the University of the AegeanOrigin: Πρότυπο Πειραματικό Γενικό Λύκειο Μυτιλήνης, Πανεπιστημίου Αιγαίου - Model Experimental High School of Mytilene of the University of the Aegean