The telescope was one of the 5 small telescopes bought in Vienna in 1847 by the first director of the Observatory, George Vouris. In has been used for Comet hunting by G. Vouris and Julius Schmidt. DataInventory Number: AST25Date: 1845 (c.)Dimensions: D 50 mmMaker: LereboursInstrument Categories: Astronomy PlacesLocation: Εθνικό Αστεροσκοπείο Αθηνών - National Observatory of Athens Origin: Εθνικό Αστεροσκοπείο Αθηνών - National Observatory of Athens