||The mirror can rotate about two mutually perpendicular axes, and those axes can rotate about the verticle.|
|The mirror can be adjusted vertically through 4.5", as shown in the picture.|
|The locking mechanism for the
height adjustment shows a bit of craftsmanship. The collar is made from
a separate piece of brass fitted into the base post. The thumb screw pushes
an arc of brass against the extension tube, locking it in place without
marring the surface.
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