Lowell Observatory's collection of three-dimensional artifacts includes complete objects and parts of others.
Bristol's Recording Volt Meter
Bristol's recording volt meter
A thermometer that produces a continuous record of a fluctuating temperature.
Instrument used to continuously record very small changes in atmospheric pressure.
Negative lens made for use with 24" refractor for planet photography - 5 9/16" ef
Beamsplitter w/variable density filter and mounting tube
Periscope tube with eyepiece
View Camera Lens
Cooke Portrait Lens 6 1/2" X 4 3/4" - Focus 8 inches for view camera
Telescope tailpiece rack and pinon focus tube with eyepiece
Brass 6cm x 9cm plate holder w/built-in dark slide. Used in conjunction with 0038 camera.
Relay Tube with Prism
Optical relay tube w/mounted prism