Attached to the bottom of the accessory draw is a hand-written magnification chart. Of significance is that it is signed at the end with the  relatively uncommon name "Satterthwaite". The literature indicates that a Thomas Edward Satterthwaite, Professor of Histological and Pathological Anatomy in the New York Post-Graduate Medical College, was an active microscopist during the latter part of the 19th century. Might this microscope be associated with him?

A quote from his book A Manual of Histology, 1882 suggest that he was familiar Grunow instrumentation as follows: "For ordinary histological purposes, a lens that will show the oscillatory movement in the mucous or salivary corpuscles is sufficiently high for practical purposes. This is accomplished by the ordinary student's one-fifth of Grunow, for example."  Among the lenses associated with this microscope is indeed a 1/5 Grunow student's objective. Overall, it is possible that this microscope was an instrument in the laboratory of Professor Satterthwaite.

The following is his obituary as published in the American Decades: Thomas Edward Satterthwaite, 91, physician and author; while studying in Vienna after receiving his M.D. from Columbia University, the Franco-Prussian War broke out and Satterthwaite received a commission as assistant surgeon in the Prussian army; on his return to the United States, he worked as a microseopist and pathologist at various New York City hospitals and founded and cofounded the Babies' Hospital and Post-Graduate Medical School, New York City. He died 19 September 1934.