Combined telescope and drum microscope




United Kingdom


William E. Statham / Optician / Chemical, Philosophical / & Photographic Instrument Maker, &c. / III Strand, W.C. / Polytechnic Institution, Regent St. and Crystal Palace



Optical 1


Optical 2


Size of the box (h x b x d)

5.5 × 17.5 × 9.2 cm

Size of the microscope (h x b x d)

Size of the telescope (adjusted for infinity): length 33.5 cm × diameter 2.7 cm; Size of the microscope: height 17.3 cm × diameter 4.2 cm

Inventory number

SM 20


This instrument is known as ‘Stathams Panopticon’, it is stored in a little wooden box covered with brown paper.
The instrument consists of a small achromatic telescope, the aperture of the achromatic objective lens is 21 mm, there is a four lens eyepiece. The eyepiece can be screwed on a simple stand, it functions then as a drum type microscope.
Accessories: a flat mirror, a lens cap, an eye cap and an eye cap with blue filter glass. There are three positive lenses that can be used on the microscope. There are four English object slides.