Machining a Replacement Eyepiece Adapter for a Hilger-Watts Autocollimator

I recently purchased a Hilger-Watts Autocollimator that unfortunately was missing the eyepiece. After searching for and not being able to find a replacement, I ended up machining an adapter to use a microscope eyepiece to the instrument. This video shows how I turned the adapter on my Monarch Model K lathe out of a piece of brass.

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