Scarce unused c. 1933-1934 advertising postcard for the Armco-Ferro porcelain enamel frameless steel house, intended to be a production model house in the Art Moderne style.  The prototype house was built in Cleveland, OH in 1931 or 1932.  One of the homes, exhibited at the Century of Progress World's Fair in Chicago, was later moved to Beverly Shores, Indiana.  Another was built in South Euclid, OH.  Constructed by the Insulated Steel Construction Co. of Middletown, OH, it shows a four-square plan with a guest house to the left.  The house was advertised as never needing paint due to the porcelain enamel steel walls, while being easy to clean.  The cost was described as "reasonable."  It was known as The Mayflower House, as it was decorated by Mayflower Wallpapers.  A desirable architectural history or World's Fair collectible in excellent condition.