Estimated Date: 1901
Name: Stethoscope, Bowles
Manufacturer: GP Pilling and Son
Description: Stethoscope, Pat date 6/25/01. There is a protective metal plate over the Bakelite chest piece, which is 1.75” diameter. Reads this cover to be taken off before using stethoscope. Standard earpiece. This model has a metal connector at right angles to the head, which divides in two and which has an arm in the middle to exert pressure.
Reference 1: 39