SYPHILIS GLASSES: Also from onegoodeye, is a rare set of green tinted four-lens spectacles commonly worn by sufferers of syphilis in the early 19th century. The design was patented by J.R. Richardson in 1797 and these ‘double D’ frames were hand made somewhere between 1800 and 1820. Hands Made, Green Tinted, Frames, 19Th Century, 1797, Handmade Glasses, Design Patent, Jr Richardson, Syphilis Glasses
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Electrocoticography set, Brazil, 1991-2000. This frame consisting of a series of electrodes is known as an electrocorticography set. This is a type of test used to stimulate and record the electrical signals of areas of the brain by placing the electrodes directly on to its exposed surface. Areas of the brain can then be mapped using this set. One of the main uses of this technique is in the treatment of severe epilepsy. The set was made by Micromar Ind Com. Ltd, who also donated the object ...
Antique Optometrist Trial Lens Frames