One Out in Aluminum Aluminum spools replaced their wooden counterparts, later in the factory’s history. Related Similar Images ...based on the tags: black&white, dirty, favorites, infinity, machinery, spools... The oldest part of this mill had a wooden roof that rotted away long ago. Slowly, rust is dulling the edge on every cog left behind. A long tunnel stretches toward the Mississippi. Was this the route Model Ts took on their way to waiting barges? The final ball mill in the Chain O’ Mines concentrator. Behind it was a bucket of steel balls. Above the old machine shop is a packing building and a crate of cardboard label rolls. An auxiliary crane in the corner of the foundry room. A closeup of the now-scrapped steel chute. A view of the government presses, with pages of law across the floor covered in footprints. All of the bucket conveyors crashed on this work floor when their casings were scrapped. Note all of the valves to open the grain flow. A romance novel left by some worker–lunch break reading–now sits under a grease stick.