Lucernal and Solar Microscope by George Adams, London, c. 1790

Lucernal and solar microscope by Adams

Lucernal microscope on tribrach and pillar stand supports a pyramidal projection box. To one end is a ground glass projection screen, below which is the bracket that holds a telescoping brass tube carrying the eye locating aperture.

The brass solar microscope, with opaque specimen chamber, has a square plate with screw holes in opposite corners to attach it to a window shutter with the long narrow mirror projecting outside the window.