KL-1 Circular Slide Rule description This CIRCULAR SLIDE RULE (model KL-1) is 50 millimeters in diameter (approximately 2"). It is intended for performance of trigonometric and mathematical operations

 

VINTAGE SURVEYOR'S 100' CHAIN, NO KINKS, NO BREAKS, NO WELDS. DO NOT KNOW HOW OLD IT IS. EMAIL WITH QUESTIONS AND THANKS FOR LOOKING AND BIDDING!

 

Up for auction is this very nice like new condition K & E, Keuffel & Esser, slide rule. This has a copyright date of 1947 and I believe this was made in the early 1960's. The rule comes with a

 

FROM A LOCAL ESTATE. 6 1/2" ACROSS. EXCELLENT WORKING CONDITION. THERE IS NO NAME ON IT. NO RESERVE.

 

Real human skull. Probably from the 1930's. Dissected for easy identification of structures. There are a couple of chipped teeth. Otherwise, the skull is in great condition and makes an impressive dis

 

AN ANTIQUE MAGNIFYING QUIZZING EYE GLASSPROBABLY DATING TO THE MID 19TH CENTURY CIRCA 1850DECORATIVE ENGINE TURNED GILT METAL HANDLEMEASURES 4.5 INCHES LONG [ 11.5. CMS ]LENS MEASURES 1.5 INCHES DIAME

 

Chemical Suit - Coat This package contains the coat from a chemical suit. The package is unopened. Please see the detailed photos and email me with any questions. Pictures are provided to best represe

 

This is a Picket slide rule from the Cleveland Institute of Electronics and the patent date goes back to 1964. The slide rule is a plastic I think with metal on all the edges including the center slid

 

Charvoz surveyors compass, model 56-0628. New, never used. Leather case is in perfect condition. Compass is in perfect condition, base measures 4.5" x 4.5" and comes with mount for tripod or stick. Ma

 

Fresh out of an estate closing is very nice wooden crate or box from the Trojan Powder Co. of Allentown, PA. It measures 25" x 11.5" x 10", is quite heavy and sturdy - just one loose nail needs to be