Composed of three in each other cut wooden parts, dressed on the outside with green cardboard, on the inside with black painted cardboard. Two pieces of spring- loaded pull-outs of blued, partly rusty steel, one cut off and away.
At the ends of the largest and the smallest part of dark brown wood lens holders, only the smaller lens, d 60 mm, remains (carved marking: “20 inch”). Around the lens frame of horn, the lens lies loose in the neck of the lens holder and is held by screwing, (the larger screw is missing).