For your consideration is this Recent Vintage Estate Find Sears Roebuck Surveyors Transit with Accessories and wooden box. I tested this at about 50 yards and the focus worked as it should and the image came in clearly but it is not fully tested. Model #19727 is on the transit but the box has the model #789-46010, I'm not sure why the numbers don't match but both the transit and box are in very nice shape! We professionally and skillfully package all of our items for a safe and reliable shipping experience. Please look at all the pictures carefully and ask any questions before making your purchase.