My guess is that the Capitol Hotel closed and Adler bought up some of their equipment.
Standing between pockets 1 and 2. You brought hearing protection, right?
“Ballistite is a smokeless propellant made from two high explosives, nitrocellulose and nitroglycerine. It was developed and patented by Alfred Nobel in the late 19th century.” -Wikipedia.
This corner of the building was the coal room, used to feed the two big boilers inside. The steam equipment has been replaced with electric, so this section may not have changed much in the past decades.
The Hamm-stenciled chairs are all destroyed as far as I know, now, as are the custom ladders built in-house for the company. Taken between the Filter House and Keg Wash House.
The top floor of the nitrating house was full of switches and breakers for the operation below, each bearing a label and number. Nowadays everything is printed, but when INAAP was built, all these signs were painted by hand.
Behind the factory was an old truck, blocked in by overgrown trees on one side and the buildings on the other.