20 Vintage Dempster Windmill Foundry Sand Cast Wooden Molds Steampunk

This assortment of 20 vintage foundry industrial wood sand casting mold parts came out of the Dempster Windmill factory in Beatrice, Nebraska. They are of various shapes with some having mold number/letter markings and some with names identifying the specific part it was used to make.
The Dempster Mill Manufacturing Company was founded in the 1870's by Charles Dempster. They produced windmills, pitcher and tall well water pumps along with other agricultural related items.