Work included replacing duct work, cleaning steel members, replacing steel members as necessary, replacing a segment of metal duct which is part of an assemblage that runs from the top to the bottom of the shaft.  A segment of duct along this run was replaced for efficient transport of blown air from top of shaft to help eliminate humidity at the bottom of the shaft.  Numerous secondary structural steel members were replaced between the 1st and 5th floors the remaining structural members were cleaned and painted.