Old pocket Barometre Holosterique marked on the dial and on the back HPBN (Naudet Pertuis Hulot ) Diameter 2" Conditions as you see in the photos: not used for many years, to be revised and cleaned At

 

GOATFREAK64 Store VINTAGE FREDERICK POST ENGINEERS SLIDE RULE 1447 P HEMMI W/ CASE 3 THIS IS A VERY NICE VINTAGE FREDERICK POST COMPANY ENGINEERS SLIDE RULE. MARKED NO 1447 P, FREDERICK POST COMPANY C

 

THIS ITEM IS A BOGART COAXIAL MICROWAVE DIRECTIONAL COUPLER 2 to 4GHZ - 20DB MODEL 881714-4 SERIAL NUMBER 95 MADE IN U.S.A., BROOKLYN, N.Y.

 

Here are 45 boxes with 12 Speedball Pen Nibs in each box...never used. I've been advised they're from the 1950's and they are made by Hunt Pen Co. They are Triple Reservoir and of multiple tip sizes f

 

Alro 200R Very rare dutch circular slide rule ALRO 200R After 2 years I have started again to sell some of my slide rules and some other interesting things about calculating. I offer a very rare dutch

 

Vintage Omicron beam compass that allows for drafting circles up to 72 inch radius. Wood box is 5 1/2 by 2 7/8 by 3 1/4 inches deep. Box shows some scuffs and previous owner put his initials on box. C

 

Auctioning this vintage medicine spoon. The Wilson Medicine Spoon is a silver-plated spoon made by Wilson Spoon Co., Ltd., and patented March 9, 1897 by James Bernard Wilson in the US. This unique spo

 

Poly phase Duplex Slide Rule. The owners name is on the box H.A. Dohertry. Pat. Dates June 5, '00 Dec. 22 '08.The box is in good condition outside. Inside area where you take the cap off, cardboard is

 

A amazing vintage medical rubber stamp! Anatomy of a Frog! A must for your medical collection! Please view all pix, and feel free to ask questions . Will ship US only Posted with eBay Mobile

 

Vintage 1970's Hand Blown Glass Swan Water Barometer measures about ( will add this ) Inches Tallthe water will be drained from this...just wanted you to see it ..... add water and what ever color you