Microsedimentometer, glass, in wooden stand, by Hawksley and Sons Limited, 17 New Cavendish Street, London, England, 1880-1900.
Using microsedimentometers to detect disease through blood samples began in the 1880s. The rate at which the red blood cells settle is used to monitor the health of the blood and diagnose certain diseases. This example was produced in the late 1800s. It compared results between the different vessels. It is effective at spotting inflammatory diseases such as rheumatoid arthritis.