These are beautiful, collectible or indeed usable new items. They are radiation hardened and mil spec (military specification) and I believe they came from Lockheed Martin IN PA, USA. The are for use

 

Up for auction is a vintage Binary Slide Rule with case and instructions. The slide rule measures 8 and 5/16th inches (not including transparent arm). On the side with 2 arms, it says, "THE BINARY SLI

 

EACH OF THESE IS MARKED AS BY COORS POTTERY. DRUG STORE OLD STOCK ESTATE ITEMS & THEIR EXACT AGE & HISTORY IS UNKNOWN. THERE ARE NO CHIPS OR CRACKS - SEE CONDITION STATEMENT. 6 SETS FOR 1 PRIC

 

ANTIQUE MICROSCOPE SLIDE BY FLATTERS & GARNETT. DIATOMS. ARACHNOIDISCUS. 5 SPECIES SEE IMAGES FOR CONDITION. 2 SPECIMENS MISPLACED IMPORTANT: AS FROM 2ND APRIL 2013 THE ROYAL MAIL HAVE DRAMATICALL

 

Vintage Bruning 2401 5" Pocket Slide Rule w/Leather Case, Box & Instructions

 

A BEAUTIFUL VINTAGE SET OF TARCO INSTRUMENTS MADE IN GERMANY. # 3670. 12 PIECES. WOODEN BOX. VERY NICE

 

Antique Microscope Camera Lucida. To fit tube/eyepiece size 27.2mm. See images for condition: Excellent. Optically and mechanically fine. This actually works incredibly well, compared to many others I

 

You are bidding on a POCKET COMPASS This is a pocket Compass in its original Mahogany case. The needle is immobilised when the lid of the case is closed. The glass is very clean with no scratches. The

 

4081-3 Log Log Duplex Decitrig copyright 1947 K&EIn wonderful condition, unmarked except for owner's name asked in pen inside case. Leather case like new.

 

A BEAUTIFUL PAIR OF LORGNETTE MOTHER OF PEARL OPERA GLASSES.see picturesTHIS VINTAGE PAIR OF OPERA GLASSES IS SMOTHERED IN MOTHER OF PEARL-THE CRAFSMANSHIP IS SUPERB-THERE ARE BEADED FERRULES SEPERATI