When did the profession of lampblack grinder become obsolete?
Frequently Asked Question about the extinct profession: Lampblack Grinder
The profession of lampblack grinder became largely obsolete in the early 20th century, around the 1920s, due to advancements in technology and changes in lighting. The introduction of electric lighting reduced the demand for lampblack, a carbon black pigment used in inks and paints. As a result, traditional grinding methods and related professions diminished significantly.