The microscope is supplied with a stage condenser, a live box, a hand forceps, a triple button objective, and a group of prepared slides. The base is lead filled. The microscope measures 8-inches tall when fully closed. This drum microscope is a French import. At the bottom of the storage case is the trade label of the importer, James Forster Jr., Cincinnati.

The following quote is taken from The Makers of Surveying Instruments in American Since 1700 by Charles E. Smart, 1962:

"James Foster, Jr. was born in Baltimore, Maryland in 1814 and died in Hamilton County Ohio in 1873. Cincinnati directories list as follows: 1839-40 First listed - employed at Wells and Foster, Mathematical instrument makers. This listing continued through 1844. Also listed as a machinist in 1839 and 1840. And in 1846 listed as James Foster, Jr. Mathematical and Philosophical instrument maker. The James Foster, Jr. Company was last listed in 1880."