Subway Construction.
6th Avenue Subway Construction, 17th Street.
WPA [PWA] Construction
6th Avenue Subway Construction, 16th Street.
6th Avenue Subway Construction, 18th Street.
6th Aveune Subway Construction, 30th Street.
6th Avenue Subway Construction, 17th St.
6th Avenue Subway Construction, 32nd Street.
6th Avenue Subway Construction, 13th Street.