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Plumb bob

Dates: between 1879 and 1882

Nels Ferguson, a Swedish immigrant, used this plumb bob in his work as a stonemason. He was involved in the construction of the Kansas Statehouse and the Topeka State Hospital. Ferguson later settled with his family in Richland Township in Jewell County, Kansas. He used his stonemason tools in the construction of his stone farmstead, Rock Hill Farm.

Plumb bob