The needle is missing. DataInventory Number: ELE98Date: c.1930Instrument Categories: ElectricityDemonstration apparatus PlacesLocation: 26ο Γενικό Λύκειο Αθηνών - 26th High School of Athens Origin: 2ο Γυμνάσιο Θηλέων Αθηνών - Second Gymnasium for girls, Athens