Progressive Map Service
The Progressive Map Service (fl. c. 1910 - c. 1945) was a American map publishing company active in Fresno, California, during the first half of the 20th century. The firm, which was owned and run by Dan W. Chamberlin, specialized in southern California city and county maps. Most of their maps are a synthesis of government, county and private survey work. Unfortunately, little is known of Chamberlin or the company's operations.
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We don't yet have any maps by this cartographer in stock — but that's more a matter of timing than availability. New acquisitions arrive regularly, and pieces from this maker do surface. Check back soon, or reach out if you're specifically looking for one — we're always happy to keep an eye out.
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