Blue compass dating ltd
As good an example of this fine model as you will find. It has a good sub-stage plano-concave mirror, a swing out mechanical sub stage with Abbe condenser, lever operated iris and swing-out filter holder.It has a full thumbwheel controlled mechanical stage, with slide clips.
The main focus is by rack & pinion and the draw tube is calibrated for easy setting of tube length. The mechanical, centring, sub-stage has thumbwheel controlled rack & pinion adjustment and swings out for ease of changing the sub-stage accessories. The case has a brass & mahogany handle, brass hinges to the door and original working lock & key.
The height of the lamp can be extended by sliding the well assembly up the pillar, to make the overall height over 18 inches.