Vintage DIETZGEN Vector Type Log Slide Rule No B 1725 BRAND NEW IN BOX! Yes, folks, you read that right, this 1950s era Dietzgen slide rule is BRAND NEW. Comes in original box, as shown, and is still

 

NO WORLDWIDE SALE OF THIS ITEM ONLY USA SALE OF THIS ITEM. As found at an estate sale. #15. This is a Vintage (PRE 1964 NO ZIP CODE) 3-3/8" diameter Hanging Compass with a "Stop Lock" (6th photo) that

 

Vintage Gerber Scientific Instrument - Gerber Variable Scale in org box. Made from Lucite and aluminum. Model TP007100B; patent 284335. roughly 12” long. Condition- intact - slide moves smoothly. th

 

I am offering for your consideration a Key Line "Concise" circular slide rule, marked AMP (aprox. 3 1/4" dia.) with directions and case. It is in like new condition. Happy bidding !

 

Antique wooden slide rule made by Keuffler and Esser Co. of New York. Patent 1,934,232. I'm told these are from the 1930s and I believe the 38 reference on the leather case refers to the individual's

 

Here's a working model (roughly 6" plastic) Astrolabe, complete with a 35-page softcover book, The Astrolabe by Harold N. Saunders, B.Sc, A.R.I.C., (c) 1971. The book offers the history and constructi

 

For auction is a vintage Avery sterling silver caduceus pin. ***The pin measures approximately 1/2" x 3/4". ***It is stamped Avery and ster on the back of the pin. ***It has had a light cleaning. ***T

 

Mid Victorian Microscope Slide of Pigment Cells of Human Life.Circa 1860I find this slide astonishing. Can anyone let me knowif this sample of pigment would still contain DNA?? Please look at my other

 

This listing is for a Tasco microscope. We are primarily a tool dealer and do not know much about telescopes. This one was brought to us to sell. The telescope is from the 1970's and does not look bad

 

ESTATE FIND! This one of a kind kaleidoscope was found at a local estate collection of vintage and antique items. The well made, heavy piece features multi colored, leaded stained glass kaleidoscope t