PRISMATIC INVERTING OCULAR
Stock Number: 8080
$280.
For sale, antique Nachet inverting ocular, which has internal lenses and prism to give an upright image of the object when used with an ordinary compound microscope, especially facilitating dissection.
Dimensions
1-3/4" (4.5 cm)
Circa
c.1900
Country of manufacture
France
Description
PRISMATIC INVERTING OCULAR, French, c. 1900, engraved “Nachet” in script in the chemically darkened brass body. Measuring 1-3/4″ (4.5 cm) overall, and with an eyetube outside diameter of 23.3 mm, the ocular has internal lenses and prism to give an upright image of the object when used with an ordinary compound microscope, especially facilitating dissection. Condition is fine noting some spotting to the prism. Nachet advertised this inverting ocular in the late 19th and early 20th centuries, and further recommended its inclined exit beam for ease of use with vertical instruments. Complete with the original velvet lined case.
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Dealer information
TESSERACT
David and Yola Coffeen both have enjoyed academic careers, as planetary astronomer and as linguist/educator. But since 1982 (yes, 1982!) they have been full-time dealers in early scientific and medical instruments, under the name Tesseract. Selling primarily by catalogue (over 100 issued so far) they also have a web presence at www.etesseract.com, and can be contacted at [email protected].
