Explore Chicago Collections
https://explore.chicagocollections.org/records/?f2-types=Archival%20Collections&=&=&=&f6-institutions=Chicago%20History%20Museum&f1-names=Perkins%20%26%20Will&f5-topics=Work%3A%3AIndustries&f3-institutions=Chicago%20History%20Museum&browse-names=yes