 His design for 604 Fifth Avenue, a slender six-story building in Midtown Manhattan completed in 1925, incorporated curved glass corner windows which lacked a supporting corner post, another innovation that later became common.This building, which housed a Childs restaurant on its lower floors, garnered notice from Le Corbusier and other prominent architecture critics.His design for another Childs location at 2 Massachusetts Ave. NW in Washington, DC, completed in 1926, was very different.