The stethoscope could have been made by the Hartz Co. but we also know that they were the distributer.

Instrument used to amplify sounds from within the body especially used to listen to heart, pulse and lungs.

Part of a larger collection of medical artifacts, archival material and trade literature transferred to CSTM in 2002 from the former History of Medicine Museum in Toronto, Ontario.

Example of unusual one piece monaural stethoscope: most have separate ear-piece. First monaural stethoscope was invented in France in 1816: compact and rugged, the instrument greatly improved the physician’s ability to listen to internal body sounds. Monaural used exclusively c. 1820-1850 when binaural stethoscope was introduced.