Binocular microscope

This microscope tube is forked and both eyepieces are inserted at the top. They can be moved upwards using a screw that controls a rack mechanism on the front of both tubes. The lens is placed directly in the bottom of the tube. There is also a system to block light and stop it entering the tube. On the back of the tube is a screw for fine focusing. The tube is supported by a piece that is fitted to the pillar and holds it in place with a screw. The cuboid pillar has another triangular pillar inside, which can be moved using a rack system controlled by 2 side screws for macroscopic focusing. The stage is rectangular with a mechanical system that uses 2 side screws to move the sample forward and backward. It can also be moved sideways using a different screw. On top of the stage is a hole for clips. Under the stage is the condenser diaphragm, which controls how much light can enter and can be lowered using a rack mechanism controlled by a side screw. Below the stage and held in place at the very bottom of the pillar is the plano-concave mirror, which can move freely. The pillar is supported with side screws on a pedestal that can tilt.

The pedestal consists of 2 triangular elements and is supported on a horseshoe-shaped base, which has slightly curved limbs and a heel bearing the inscription: "BAKER. 244 High Holborn. London" in reference to the company's location between the 1850s and 1870s. The foot is fastened to a wooden base so that it can be slid inside the mahogany box.