DukeUnivLibraries:
Rubenstein Library Old Elevator Room
DukeUnivLibraries:
1928 Otis Elevator Motor
DukeUnivLibraries:
Detail of 1928 Otis Elevator Motor
DukeUnivLibraries:
Pneumatic Tube Air Compressor
DukeUnivLibraries:
Air Compressor Starter Switch
DukeUnivLibraries:
Booklift Motors and Electrical Panel
DukeUnivLibraries:
Pneumatic Tube Capsules
DukeUnivLibraries:
Pneumatic Tube Capsule
DukeUnivLibraries:
Detail of Electrical Panel
DukeUnivLibraries:
Pneumatic Tube System
DukeUnivLibraries:
Pneumatic Tube System
DukeUnivLibraries:
Pneumatic Tube System
DukeUnivLibraries:
Rubenstein Original 1928 Elevator Buttons
DukeUnivLibraries:
Pneumatic Tube Canisters
DukeUnivLibraries:
Canisters, call slips, and books
DukeUnivLibraries:
Canisters, call slips, and books