Standard Pattern Works, York, Pennsylvania

Men pose in their work areas at the Standard Pattern Works in York, Pennsylvania, sometime early in the twentieth century.

 

As Wikipedia explains, "In casting, a pattern is a replica of the object to be cast, used to prepare the cavity into which molten material will be poured during the casting process.... The making of patterns, called patternmaking..., is a skilled trade that is related to the trades of tool and die making and moldmaking, but also often incorporates elements of fine woodworking."

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