ADM-Delmar #4- Basement Bell Workers in the basement tunnels had to communicate with the workhouse operators 100 feet above and vice versa. Alarms and bells were installed to signal trouble over the sound of the elevator machinery. Similar Images ...based on the tags: buttons, found-photos, left-behind, rusty, signs... Not necessarily a children’s room. Leather shoes in a supply closet. They seem to me men’s shoes. The Comm Room’s portals once supported many more conduits. A warning sticker on the interior of a dredge once tied to the old dock. Much of the plant depended on steam, not only for heat but for mechanical power. Portraits of great men. When ‘men’ meant ‘worker’. Blue plastic siding filters the summer sun, giving the otherwise reddish-brown interior a splash of color. One of the few artifacts left in the chapel section is this old floor buffing machine.