Removing the limestone masonry required reversing the process of installation: mortar joints were cut out or opened by levering the stones apart, Lewis holes (for lifting the stones) were opened or cut, and the stones lifted and lowered to the street. Some of the larger blocks, such as the 13 ton stone shown in this photograph, were cut into smaller pieces prior to being removed from the buildings. Demolition of the larger stones was similar in practice to quarrying the stones from the earth. The riveted connections of the steel frame are also visible in this photo.