Presented below are some detailed images of a large Neutron Microscope prop that was seen in the 2nd season Star Trek: Enterprise episode "Stigma" (first airdate: Feb. 5, 2003). This heavy prop measures approximately 25" in height by 11" in diameter at its base and features various silver colored aluminum metal components as well as resin, plastic and graphical applications to simulate multiple positioning knobs and control panels. Some screenshots of the prop in "Stigma" are displayed immediately after the modern day photos ...
This microscope was also seen in the 4th season Star Trek: Voyager episode "Concerning Flight" (first airdate: Nov. 26, 1997) ...
and was originally employed on screen during the 2nd season of Star Trek: The Next Generation ...