NACHET SOM BERTHIOT MICROSCOPE LENSES PROJECTION & OCULARS LENS LEITZ, ZEISS?

The four lenses while looking through they show only a small slit of light coming through. See last picture. I have no idea where these were used for. The two thinner identical lenses are 63mm in hight and have a 20mm diameter. One moves smooth the other is stuck. Also show a slit of light coming through. The large lens the lenses can be swapped out. The ocular has a small glass chipped of.

Elements are clean and bright, show no anomalies.

Lens shows some signs of prior use and is overall in good condition. Shows some scuffs marks, some scratches, no dings, no indentations, some nickel plating rub off. The elements are in very good condition. No cleaning marks, no scratches, no haze, no fungus, no separation.