This is a finder telescope (or finderscope) for a larger telescope.

It is comprised of a plain brass tube and an eyepiece. There are two crosswires in the field of vision of the barrel, these are stretched across by an inside barrel into which the eyepiece screws. In the eyepiece position there is a metal tube which may have been an eyepiece but there are no optics in it. This eyepiece slides in and out of the finderscope.

There is a separate eyepiece which fits into this position instead of this metal tube. The eye-end is painted black. At the other end there is a screw thread on the inside which screws onto the barrel inside which holds the cross wires. This way the cross wires are kept at the same distance from the eyepiece. At one end of the eyepiece there is a silvery ring which may be from soldering. The eyepiece focuses by pushing and pulling. There are two slits on each side of the barrel, it is not known why they are there. On each side of the main tube there are several small holes, four on one side, five on the other. On each side two of the holes are paired together near the object glass end.