Finding Aids

The Plymouth Cordage Company of North Plymouth, Massachusetts, was founded in 1824 and was involved, as their name implies, in the rope-making industry, particularly for use by the shipping and fishing industries. This album contains sixteen photographs of plant interiors showing machinery and manufacturing processes, and two exterior views of the building.

The Warren-Ehret Company was a Philadelphia roofing company founded in 1883. This collection consists of 259 images from three unbound albums which were used as sales portfolios to show the variety and extent of Warren-Ehret's roofing jobs on a variety of buildings.