THE ORIGINAL PART of Spring Street station has changed very little since 1904. The color of the station remains an aqua blue, appropriate given the station's location and name. Note the similarities between the bottom photo, and the previous one of Canal Street. The terra-cotta "S" along the cornice of the walls is in the same style as those at Worth, Canal and Bleecker Streets. The top photograph well illustrates the vault lighting that was used in many of the original stations. Such natural lighting was used to the extent that "very little artificial light is needed," according to the IRT book from opening day in 1904. The vault lighting has been removed at Spring Street station, as at the other stations where it was used (except for part of City Hall station).