We really respond to these woodcuts by sculptor/printmaker (and clandestine graphic designer) Dallas Guffey. See more at his website.
Rebecca Loncraine, The Real Wizard of Oz: The Life and Times of L. Frank Baum. NY: Gotham Books, 2009, p. 252—
In 1913, [Henry] Ford began making the Model T automobile in his Michigan plant through a researched, rationalized assembly-line production method. Before 1913, automobiles were custom-made. One of Ford's engineers was inspired by a visit to a meatpacking factory on Chicago, where he saw dead cows butchered in a rational assembly-line process, where a carcass was chopped into recognizable joints as it moved along a conveyor. The engineer reversed the idea and envisaged building an automobile along a moving line where static workers performed the same repetitive task over and over again. The cost of a Model T fell rapidly from $575 to $240, and became affordable to middle-income households.