If you need to draw polygons in circles or divide lines for any reason, then these are for you! The item is a set of proportional dividers. They come in their original case with instructions and are i

 

Vintage METAL EYE BATH KIT**Glyco-Thymoline**KRESS & OWEN CO**Instructions*Box**

 

twix Store Antique Doctor's Otoscope / Ear Trumpet Set With Case Canadian bidders - We are a registered business, if you are a Canadian resident, add GST - if you live in Ontario, please add HST. Cana

 

Limited supply, get yours now! This auction is for one gold, silver, and ore refining kit. Now with two 2" magnesia cupels included. This kit was put together with the thought of tinkering in mind. Th

 

The PDS Drawing System is a unique drawing instrument that combines the basic elements of drafting into a single tool. Integrated into each of the tools is a combination of scales, 90 degree and 45 de

 

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

 

Rotring Rapidograph technical drawing pen, piston filler, with points 0.3mm, 0.5mm, 0.6mm, and 1.0mm. I bought this when they were fashionable for writing teeny-tiny notes in the margins of books and

 

One pair of highly sought after Docter Optic Deltrintem 8x30 binoculars. Made in Germany. Serial #7305386. There is surface wear to the paint and minor wear to the rubber around the eye pieces. Lenses

 

Up for sale is this Vintage Lufft Abbeon Certified Hygrometer. This hygrometer is still in the original box with the test certificate. This is a West German Made gauge produced by a company known for

 

Vintage mid-20th century Swift & Anderson barometer, thermometer, and hygrometer with great retro look, in wood, brass, and glass. The three part weather station features round instruments encased