An engraving depicting a sectional view of a steam-heated
An engraving depicting a sectional view of a steam-heated brick boiler used in the production of soap. The steam passes through the spiral coil of the pipe at the bottom of the boiler. Liquids were drawn off through a pipe (D). Dated 19th century
Picture No
13911562
Media ID
48478305
Size
5282px x 3970px
(7.3MB)
Credit
World History Archive / Mary Evans Picture Library
Source
World History Archive





























