The large mahogany case has a lock, key and a brass handle; it contains a drawer where are housed two trays, both lined with green velvet and arranged one on the top of the other, and a lower level.
The first tray (bottom of the image) houses three Huygenian eyepieces with bayonet fitting, the substage lens condenser with a disc with four apertures, an objective collar for objectives fitting when the microscope is set in vertical position, an Amici-type camera lucida; the last place is empty but could accomodate a positive lens in a rectangular frame to attach to the camera lucida to correct the operator's eyesight (missing).
In the second drawer (top of the image) there are two brass button lenses objectives with a bayonet fitting; the first one is engraved on the rim with two rough lines and its two buttons are engraved respectively "2" and "3"; the second objective is engraved with three rough lines on the rim and its three buttons are engraved "+", "++", "+++", respectively; a further objective is fitted with a lieberkuhn. Finally, a stage micrometer in a brass mount engraved Millimetre en 100 Parties, signed Charles Chevalier Palais Royal, and a rectangular glass cell. The forceps and the bull's eye are missing. The green velvet tray can be lift out and under it there is still room for other accessories, with a large wooden slide present. We note the letter "beta" printed on one side of both trays.
The microscope is stored in the bottom of the drawer, with other accessories, on supports lined with green baize; a Nicol prism polarizer and a two-parts optical tube with one lens in each part are included.
In a wood section are a translator plate and a galvanic device by Ploessel, both made of brass and signed Charles:Chevalier. The first item is to gently move the position of the sample during an observation, the second one is made with two ferrules that can be connected to an external electricity source (e.g. a Daniel cell) to permit the observation of its effects on the sample.