AO SPENCER MICROSCOPE OBJECTIVE

AO SPENCER MICROSCOPE OBJECTIVE

Stock Number: S23

$70.

AO SPENCER MICROSCOPE OBJECTIVE, American, mid-20th century, 43x, N.A. 0.66, #950162. Excellent.

Circa

c. mid-20th century

Category: Microscopy

Description

 For sale, AO SPENCER MICROSCOPE OBJECTIVE, American, mid-20th century, 43x, N.A. 0.66, #950162. Excellent.

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US 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 mail@etesseract.com.

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