A rarely used pocket "insectoscope" in cylindrical, brown card case c.1890


2 x 1.5 inches ( 5 x 3.75 cm.)





Country of manufacture

UK and Ireland

Categories: Office Antiques, Magic Lanterns & Optical Toys, Natural history, Microscopy


A fine little survivor of the Victorian age. All brass, cylindrical “insectoscope” for the examination of transparent specimens in the field. Consisting of a single lens behind a blackened top, draw tube and threaded focusing with a tinted glass insert at the midpoint. The specimen (insect wing?) is laid on the glass, the cap with lens compressed over and then the threaded cap adjusted for focus. Magnification is about 5 x. Good optics although if the specimen is too thick, some imperfections of the glass stage insert can be seen (delamination?). The glass insert is NOT removable so it is difficult to know if it is dirty or the glass has been tinted for contrast. The brown two part card case is flawless and the scope itself is nice and tight and shows light wear. Rarely used. Measurements of the case are 2 x 1.5 inches and the brass cylinder extends to almost 3 inches.

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CA ScientificaOpticae

Scientifica Opticae

Mark Hacking (Scientifica Opticae Inc.) has been an avid collector/dealer for over 30 years. A former Science teacher, he has an innate love for anything natural or mechanical. Specializing in optical (microscopes, telescopes), surveying, medical, weighing and drawing instruments, he is an active participant of the Scientific Instrument Fair in London. Living in Stratford, Ontario, Canada, with his wife and two children; Mark looks forward to meeting as many fellow collectors as possible, and has a worldwide following on eBay (Sciopti).

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