Lloyd J. Harris Pie Co., “The Dough Room,” Digital Collections, accessed February 19, 2026, https://digitalcollections.library.gvsu.edu/document/44590.
A photo of a man operating a dough machine. The caption reads: "This machine has been imported from Switzerland. It duplicates the hand motion of mixing dough which is by far the most superior. Note special device for counting strokes to insure uniformity of mix."