As they came closer, John saw that it was the tail-light of an immense automobile, larger and more magnificent than any he had ever seen. Its body was of gleaming metal richer than nickel and lighter than silver, and the hubs of the wheels were studded with iridescent geometric figures of green and yellow—John did not dare to guess whether they were glass or jewel. (p. 146)
At the time, Mr. Rockefeller, Jr. was deep in the work of building Rockefeller Center, the great complex of skyscrapers that was to rise in the heart of New York City between Fifth and Sixth avenues and to become a world-famous tourist attraction. (p. 93)