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I am researching a book, and one of the people in it closed out his career in the 1980s at Steenland Lithography, apparently in the metro Philadelphia area. He was Steenland’s “director of research,” so I assume it was a company of some size. But I have been unable to find any references to it, its business, its fate. I’m seeking guidance to someone who might know about the industry in that area in that period or who might know the Steenland name. Any direction you could provide to secondary sources would be terrific, too. Thanks very much, and I look forward to returning the favor.