N600-ES Speed Rule with case Used. Ruler itself is in great shape. The leather case is a bit rough. When you pull on the tab in back it does pull the ruler out about 1-2 inches - so that is working. I

 

This is a Garrett kit that was only used once! It has the Professional 14 inch plastic pan, a 10 1/2 inch finishing pan and a combination classifier for filtering out rocks and gravel. You get everyth

 

Low vein coal mining hard hat lace in liner Posted with eBay Mobile

 

Sodium perborate is a white, granular solid which decomposes in an aqueous solution to hydrogen peroxide and sodium borate. Active oxygen content 10%. Melting point is 63 degrees Celsius. It's used in

 

This is for a nice clean Victorian Damp Detector pocket fob. It was very similar to a barometer and it is thought that it was generally used by servants to check that beds and bedrooms were not damp.

 

This lot is a 2 Volume collection of my Fathers work related notes, calculations and technical data. He worked fo Beloit Walmsley Corp. of Wisconsin USA as a paper machine designer from 1952 until his

 

Item to be paid in 3 days. Thanks for the looks, Jim Posted with the eBay Android app Posted with eBay Mobile

 

Hardly used Pickett N4-ES all metal slide rule, with original box, certificate, leather case with strap and a 93 page instruction book. This is the Vector Hyperbolix dual base log log slide rule, with

 

Awesome sign with embossed lettering It says A. M. Wentworth Scientific Optician Portland Maine, 546 1/2 Congress street Portland Maine, and a large pair of early eye glasses. The sign is in Very Good

 

The Kit Includes: 5 - 10" Green Gold Pan - The GREEN color contrasts the BLACK sand and the GOLD in your pan. *****Bonus Item: 5 Free suction tweezers!!! ***** Buy Today :) Visit my eBAY Store to see