In alt.home.repair, on Sun, 21 Jan 2018 08:48:16 -0500, Nicéphore Niépce
wrote:

On 01/21/2018 01:42 AM, micky wrote:
That did make it difficult. Maybe I'll check again! I could look at it
without a mirror if I turned it off, but that would mess up a bunch of
clocks etc.

Take a picture of it with a cellphone/digital camera. Just shotgun it, sooner or later you'll get a usable pic.

Great idea. Never would have thought of that. I was thinking of using
two mirrors! or noting which direction the tail of the 6/9 went.