This is a kueffel esser slide ruler with case. It was made in the usa. It is 12" long. Today after I took pictures to list this with the plastic parts above and below the slider part crumbled apart. I

 

A very striking plastic paperweight with metal statue inside a 2.25 inch tall paperweight with what looks like a medicine name on the side. Canadians please wait for invoice with gst tax included....G

 

Lens is 4" h x 2.25" w. Brass. No makers label. Comes with a leather and velvet lens cap. Posted with eBay Mobile

 

Thiourea is also known as thiocarbamide. White, lustrous crystals with a density of 1.4 and a melting point of 180 degrees Celsius. Soluble in cold water. It's uses include - photography (removing sta

 

Unbenanntes Dokument Ψ Welcome - Willkommen - Bienvenue - ДОБРО ПО�-АЛО�'АТЬ TO FIRST ---PLEASE READ ---TO FIRST ! ***ATTENTION*** DEAR BUYER ; COSTUMER AND FRIENDS FROM *** GH53498*** E

 

THIS ITEM IS SOLD WITHOUT RESERVE Description A rare find, Florence Nightingale, the 'Lady of the Lamp,' social reformer and nursing heroine of the Crimea had a well-known, principled objection to hav

 

This is a very nice 1962, Pickett Sliderule, N-500-T, with a leather case, both in excellent condition. The case has 2 previous owner's names inside the flap,9 Ounces

 

You are bidding on a BALDWIN carbide lamp.NICKLE PLATED,generally used by mining supervisors,the lamp has the butterfly handles with the center-hook,so it can be used as a hand lamp or utilizing the c

 

THE ITEM WITH THE PENCIL IN IT IS MARKED DIETZGEN W. GERMANY. IT MEASURES APPROX. 7" LONG. THE ONE WITHOUT THE PENCIL IS ALSO MARKED DIETZGEN. THEY SEEM TO BE IN GOOD WORKING CONDITION. THE NEXT ITEM

 

Vintage Bausch & Lomb Microscope--very heavy and old. I will try to answer any questions you have, but I don't know much about microscopes. Please ask questions before bidding. From smoke-free hom