The Detroit Publishing Company was a prolific publisher of postcards and photographic prints from the late 1890s to the early 1920s. A gift from John I. Monroe, this collection of approximately 16,000 postcards is a rich resource for views of North American cities and towns, landscapes, and national parks. The collection also includes views of many foreign countries.

Collection of hotel postcards and hotel luggage labels primarily issued in North America, South America, and Europe between 1900 and 1992.