Rare data visualization map focusing on real estate trends throughout American history, starting in the 1840s and going to the 1950s, published by Roy Wenzlick & Company.
The chart looks at different regional activities, different tax and monetary metrics, and business cycle correlations. There are graphs charting the cost of construction for numerous types of homes, inflation, etc.
Wenzlick rose to fame by predicting the boom in real estate values in the 1940s, the period covered by this graphic. Wenzlick was an avid antique map collector.
The map is very rare. OCLC locates 3 copies (Milwaukee County Library, University of Illinois, and University of Utah).
Roy Wenzlick was active in the St. Louis real estate market his entire life. His father Albert owned Albert Wenzlick Real Estate.
Wenzlick founded the Roy Wenzlick Research Corporation in 1928. A company publication, the Real Estate Analyst, was launched in 1932. His book "The Coming Boom in Real Estate," published in 1936 was a New York Times best seller and when the boom happened, he was launched onto the national stage.
The Wenzlick was also and avid map collector. He donated his map collection to Westminster College in Fulton, Missouri.