These were made specifically for a local neurosurgeon by DVI  technology in the 1970s.  It comes with a pack of spare parts and the original wooden box.

This beautiful vintage medical tool piece has a rich history and has been crafted from high-quality materials with care. It is a fusion of art and science, and it provides a unique lens through which to view the world. The innovative design of the magnifying telescope and safety glasses set a new standard in surgical tools and made many advances in the medical field possible for future generations to come.