Took a couple of shots of the existing PZT mount at the base of the IO periscope.

    I also checked the beam on the iris that is seen in the photos.  To me it looked
like the beam was clipped on the right hand side of the beam (~3 o'clock) as you look
from the PZT mount down the length of the table.  So either the beam moved or the iris
was not placed correctly.

    We should definitely check this more rigorously before we swap the mount out.