This folder contains correspondence relating to the widely publicized development of Edison's poured concrete house. Most of the material consists of unsolicited inquiries regarding the unique nature, quick construction, and low cost of the projected house. Also included is correspondence with journalists seeking information and with paint companies supplying tints for the cement. There are a few letters from the manufacturer and philanthropist, Henry Phipps, who expressed an interest in Edison's progress. Many of the items contain Edison marginalia, usually indicating that a prepared circular be sent in response.

Less than 10 percent of the documents have been selected. With the exception of a few samples, unsolicited inquiries have not been selected.

Related material in the collections of the Edison National Historical Park includes The Housing Handbook by W. Thompson (London, 1903), inscribed to Edison in 1907 and containing Edison marginalia throughout.