Vintage Bausch and Lomb Fillar Microscope Micrometer

Description

Vintage Bausch and Lomb Microscope Filar Micrometer. This unit allows for measurement through the eyepiece of the microscope. It has an eyepiece diameter of 23.3mm and the diopter is fully adjustable. The moveable micrometer filar line moves nicely from edge to edge and the entire instrument is housed in a nice wooden box which was once owned by the U.S. Army. The optics are clean.
Thank you for looking!