Chest Microscope and Accessories, by Dollond, London

The copper alloy body tube holds three lenses and the lower, narrow section of the body has an external thread to take objectives. The body is supported by a ring on an arm attached to the top of the square cross sectioned pillar. The cruciform stage has a recessed stage hole, two pinholes and a keyhole slot for accessories. The stage is mounted on a sleeve and can be racked up and down, for focusing. A pivoting arm holds the mount for the Plano-concave mirror. The pillar is mounted on a cradle joint on the inside the case and folds flat when not in use. A section of the side of the case folds out when the instrument is raised. The accessories present are six objectives, a Bonani spring stage, a copper alloy sub stage cone, a live box, a conical collar, stage forceps, a Lieberkühn, a Lieberkühn carrier, a double concave glass disc, a glass disc, an ivory talc box, copper alloy forceps, a fishplate with a green ribbon, two sliders, a slide micrometre set in copper alloy, a copper alloy wet cell and a super stage condenser on long copper alloy pin and horseshoe mounting. The case is mahogany and the supports are faced with green felt.