1819 - J. & S. Arnold, 59 Barbican, chemist and druggist; 1829 - James Arnold, surgical instrument maker; 1837 - James & John Arnold; 1845 - James Arnold; 1857 - James Arnold & Son; 1866 - Arnold & Sons; 1928 - Incorporated into John Bell & Croydon, 50-52 Wigmore Street. Business located at 35 West Smithfield, London