I worked at Rochester General Hospital for 15 years when they did a purge of the tool crib/parts room you wouldn't believe what got tossed. The "new" Hospital was built in '64 and a lot came over from the old location that was built in the late 1800s. Lots of old electrical stuff, NOS tubes, tube testers, Despar switches, gem light indicators, Bakealight chicken heads and tons of pre/post war USA made screws. Just try and find a decent screw these days.