This is a very nice 1943- dated U.S. M17 Elbow Telescope, used with the standard M1917 155mm Howitzer, the French-designed Canon de 155 C modèle 1917 Schneider. The telescope was used to aim the canon properly in various conditions.
The telescope is however otherwise in very good condition. It has clear optics, with an intact crosshair reticle, and all four selectable filters are still present and functional: RED CLEAR NEUTRAL & AMBER. This allows for accurate sighting during both the day and night. The focus on the eyepiece still works great.
There is an attachment for the internal light, however we do not know if this is still functional, as we have no way to test it.
