This microscope incorporates
features found in the earlier Bausch & Lomb microscopes
designed by Ernst Gundlach with additions usually
associated with later models such as the
Investigator and Universal
microscopes. This microscope is similar to the earlier
Research Model, but it has a brass limb and a round
stage. In addition, like some of the later models, it has a focusing sub-stage
and the arm holding the sub-stage and mirror can swing and even be positioned
above the stage. The accessories consist of a single B&L objective
with canister, two eyepieces, and a sub-stage Wale type iris diaphragm.
The serial number, 1364, is stamped onto the inside bottom of the storage case.