COMPLETE SET OF 50 LATEST TESSERACT CATALOGUES, American, 1998 - 2020.  For sale are brand new copies of Catalogues #62 through #111, each containing 40 pages of early scientific instruments for sale, all fully illustrated, described, and priced.  Included are all manner of unusual instruments of astronomy, microscopy, dialling, navigation, surveying, drafting, calculation, demonstration, experimentation, technology, surgery, diagnostics, dentistry, and ophthalmology.

The catalogues sold originally at upwards of $10 per copy, but here this full run covering the past 22 years is DISCOUNTED deeply.

Domestic postage printed matter rate $15.  International postage varies greatly.

-- David Coffeen, Ph.D.

www.etesseract.com