Description

This brass binocular microscope is mounted on a reversed claw-foot base. The limb pivots on trunnions held in flat supports. The main body tube is attached to the limb with a dovetail rack and pinion, which provides coarse focus. Fine focus is done with a thumbwheel at the lower front of the body tube, moving a short inner tube to which the objective attaches. The Wenham-style prism is held in a small carrier and slips into the side of this same tube, immediately above the objective. The second body tube is attached at an angle to the side of the main body tube. The binocular eyepiece width is adjustable with a tandem rack and pinion, mounted on the upper ends of the tubes. There is one objective and the two Huygenian-type eyepieces. The circular stage has a rotating black glass cover with a two-fingered holder for slides. There is a substage wheel of three stops and a plano-concave mirror attaches to the lower end of the limb. There are no accessories or case. It is signed on the fronts of the body tubes, “H. Crouch  54 London Wall   London  430.”