Edison pressed on and designed a range of concrete furnishings--bureaus, cupboards, chairs, even a concrete piano--to go with his concrete houses. He promised that soon he would offer, for just $5, a double bed that would never wear out. The entire range was to be unveiled at a cement industry show in New York in 1912. In the event, when the show opened, the Edison stand was bare. No one from the Edison company ever offered an explanation. It was the last anyone ever heard of concrete furniture. As far as is known, Edison never discussed the matter. A