Two derricks are visible at the third floor level in this photograph: one at the southeast corner and the other on Nassau Street nearly to the intersection with Pine Street. These were used to bring materials into the building for temporary storage. Where conditions permitted materials were frequently delivered to the first floor of the new building and moved vertically through the building on hoists. Here the need to align the floors of the new annex with those of the old building probably precluded delivery of materials to the first floor.