Signedon dummy objective: Tolles.
on tag: Charles X Dalton
Inscribedon tag: Method of connecting / the objective to the / microscope about / fifty years ago / Charles X Dalton / March 1, 1901
Historical AttributesPresented by Charles X. Dalton in 1901.
Related WorksDeborah Jean Warner, "The Microscopes and Telescopes of Robert B. Tolles,"
Rittenhouse 9 (1995): 65-83.