Estimated Date: 1920
Name: Bazzi Bianchi Stethoscope
Manufacturer: G. Boulitte, Paris
Description: 1 7/8” diaphragm type scope. The diaphragm has a second attachment with a 1 3/4” long rod ending in a gutta percha cover, which can be used to localize the sound. Earpieces are glass. Unique because it has an obturator to adjust sound on bac, regulated by a metal lever.
Reference 1: 259