Circa 1850s – London
This is an authentic antique achromatic compound monocular microscope made by Peter Dollond, London, believed to have been manufactured in the 1850s.
A beautiful example of mid-19th century British optical craftsmanship.
The microscope is fully functional and in good working condition.
Mechanical Tube Length: 160 mm
Height: approx. 36.5 cm (14.37 in)
Width: approx. 11 cm (4.33 in)
Depth: approx. 11 cm (4.33 in)
Weight: approx. 0.95 kg (2.09 lb)
Microscope body
Mahogany wooden case (see photo #3)
Accessories (see photo #14)
The case is made of mahogany wood and shows classic antique character.
Lens diameter: 15 mm (0.59 in)
The eyepiece consists of a single top lens that screws directly into the top of the tube.
Focusing is performed by turning the rack-and-pinion coarse adjustment knob, which moves the support arm holding the tube up and down.
The objective lens is achromatic and includes a protective cap.
Additionally, two achromatic objective lenses are included (see photo #13).
Rectangular stage: 50 × 60 mm (1.97 × 2.36 in)
The stage is spring-loaded and can be pressed downward.
Specimens are secured between the stage surface and the U-shaped stage clip (clamp).
The stage and spring assembly are mounted on what appears to be a zinc-alloy base.
One side is a concave mirror (inner diameter 48 mm / 1.89 in)
The other side is a plane mirror (inner diameter 55 mm / 2.17 in)
Round base diameter: 110 mm (4.33 in)
Base thickness: 23 mm (0.91 in)
Pillar diameter: 25 mm (0.98 in)
The pillar is engraved with:
DOLLOND. LONDON.
The bottom is covered with black velvet.
Live box
Specimen slides
Glass test tube with cork stopper
Approximate magnifications:
63×
160×
You can see a demonstration of specimen observation (razor and needle) using a Dollond achromatic microscope in the following video:
https://www.youtube.com/watch?v=59u-eLLeunQ
This is a highly collectible 19th-century British scientific instrument suitable for serious collectors of antique optical instruments or early Victorian scientific apparatus.
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