SOLD – Large Jones improved brass microscope by Dollond. No case.

SOLD – Large Jones improved brass microscope by Dollond. No case.

Sold

Circa

1820

Country of manufacture

UK and Ireland

Categories: Scientific, Microscopy

Description

SOLD – Signed on the folding foot, ‘Dollond, London’, with a tapering pillar which attaches to the inclining straight limb by a compass joint. Focus is to the stage by rack and pinion acting on the front side of the limb which has the rack machined into it. The substage condenser and mirror slide on box-shaped fittings along the limb. They can be locked in place by small knurled knobs. The stage is fitted with a U-shaped stage clip which attaches through the stage with two sliding pins, allowing it accommodate a variety of thicknesses. There is also a Bonani-type spring stage to accept bone sliders. There are three holes off small extensions of the flat stage to accept accessories. In this case, stage forceps, a magnifying glass, and a frog plate.

The arm supporting the optical tube fits through a slot in the limb and a  knob at the top of the limb acts on a compression fitting to hold the arm in place.

The microscope retains its original lacquer and stands around 47 cm tall. The optics are good and include an additional Lieberkuhn objective. There is no case.

 

 

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