In our latest video field update, history expert Mike Woshner tells us about the use of hard rubber in the mid-19th century.
April 2002-July 2017
In our latest video field update, history expert Mike Woshner tells us about the use of hard rubber in the mid-19th century.
Hard rubber was used in the mid 19th century? I woul have thought that this would have been a bit more of a late 19th century, industrial revolution type of material