Twin pillar brass microscope by James Queen c.1885

An excellent example of the smaller twin pillar microscope,.  Signed, “Jas. W. Queen & Co., Philada.”, in script on the stage along with the serial number of 1810, the microscope measures 10 1/2” tall when closed.  Coarse focus is rack and pinion, fine focus with an under-stage micrometer knob that screws up and down and moves the top plate of the slide stage.   The substage condenser is a wheel of stops.  The mirror is plano-concave, excellent on both sides.  The mirror swings on a compass joint so it can be used both above and below the stage.  Optics consist of two original unmarked lenses, approximately a 1”, and a ¼”.  Both lenses screw into a lens holder inside the case.  There is one eyepiece, unmarked.  The 1” lens is excellent with good contrast and a sharp image.  The optical system produces sharp images of high contrast,  excellent for an instrument of this type.  The microscope is finished in a lacquered brass with a painted black base.  The overall finish is nearly complete with only very minimal wear.  The microscope comes in its original case with brass carry handle and latch.  The case is in very fine usable condition.  The microscope itself is an excellent, functional example of the smaller instruments introduced by James Queen after taking over the Acme distribution from Sidle. 

Item 1222....................sold

 

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