Triborough Bridge AuthorityVITAL GAPS IN NEW YORK METROPOLITAN ARTERIES. New York Polygraphic Company of America 1940 Softcover Very Good; Head of cloth spine has one inch closed tear. Spectacular colored maps as well as many black & white photographs! VERY SCARCE! ; 4to 11" - 13" tall; Consists of  leaves. Includes letter (lithographed) to Mayor Fiorello H. LaGuardia from Robert Moses. Illustrated, maps (some folding, some colored) ; 31 cm. Routes of the four proposed projects to fill vital gaps in New York metropolitan arteries.