Watson & Sons Edinburgh Stand 'H'
The Watson Edinburgh Stand 'H' was a highly successful microscope for Watson& Sons having a long manufacturing period starting from 1892. Lacquered-brass monocular, four objectives, Abbe condenser and mahogany case. Square mechanical stage, sub-stage condenser and plano/concave mirror.
Tripod stand, all black lacquered, which is light, rigid and very stable, the body tube, controls and other smaller components are finished in a beautiful deep golden lacquer.
Most of the mechanical sliding surfaces have sprung wear adjusters including the course focus and 'X' 'Y' stage controls allowing slack to be taken up with small adjusting screws The Edinburgh is a compact microscope measuring only 13" tall in a typical angled position increasing another 2 1/2" with the draw tube fully extended.
The four position nosepiece fitted here has a tight friction fit plus nice positive action and par-centrality between low and high power objectives is good.
'X' 'Y' controls with the large diameter controls give a rapid but smooth positioning of the subject on the stage which also includes take-up wear adjustments. The 'swinging' mirror can be moved some way off centrality to allow oblique effects. The mirror can be moved up and down.
The condenser maybe swung out of position since it rotates about one fixing screw whilst another fixes it tightly into place if required. The course focus adjustment is by standard rack and pinion with over sized controls making adjustment very light and precise.
Of particular note is the fine focus mechanism using a milled head affixed to a fine screw this acts on a long lever with the pivot point close to the body tube.