While this microscope
is unsigned, an identical example is known marked
"Y&E" on the mirror bar presumably referring to the firm
Yawman and Erbe of Rochester New York. The firm
produced microscopes for only a short period of time
in the 1880s. Their main product was office
furniture. At one time, their microscope output was
designed and possibly made by Ernst Gundlach (see the
Nonpareil model microscope elsewhere on the
website). This microscope however does not have any
Gundlach design influences and, although attractive
from a collector's viewpoint, it is crudely designed
and manufactured.