Model of Henry Cavendish's Torsion Balance Gravitational Apparatus, 1798 1798 (original); 1977 (model)
Revised Classification of Merchandise Traffic and Revised Schedule of Maximum Rates and Charges Applicable thereto, proposed to be charged by the Eastern and Midlands Railway Company 1889-02
Replica of Lightning Conductor by Benjamin Franklin, United States, 1730-1760 1730-1760 (original); 1931-1939 (replica)