This is for an unusual vintage metal pencil sharpener with a built in compass. The sharpener is elongated to house the compass at the end and the compass has a glass top and blue steeled pointers. It

 

This is a very good quality old pocket barometer, it has a double dial, one side has the barometer, the other dial also has a thermometer and compass which seams to be in working order, surely one of

 

Model marked made in Germany. Instructions in German. Plastic duplex cursor with 5 hair lines and German markings for Horse power,Photos are of rule which is being sold..Rule dated Jan 1973. Has scale

 

THIS IS AN 11" SLIDE RULE FROM KEUFFEL & ESSER CO.

 

If you collect or restore old radios, crystal sets, early scientific apparatus, vintage test equipment, military surplus, or other unique old technical items, keep me on your favorite seller list. I a

 

Vintage Birth Control Collectible Lanteen Flat Spring 75mm Diaphragm and Jelly Includes one flat spring mensinga type diaphragm marked "75", two tubes Lanteen Jelly, one jelly applicator. Diaphragm si

 

Prepared by Herbert.W.H.Darlaston, this slide is hairs of a skunk, Mephiles mephilica. A professional slide prepare of some repute, slides by Darlaston are well sought after. Postage to UK is £4-00 ,

 

You are bidding on a set of opera glasses/binoculars. These have a good PATINA. Turn mechanism works but does appear to be missing a "tooth" on the grind wheel. Decorative illustrations with flowers a

 

THis vintage slide rule has been kept in it's box since new. It works perfectly. As the photographs show there is some yellowing of the palstic which does not detract from its purpose. Ships promptly

 

You are bidding on a nice Tacro opisometer with box. This map measuring tool is marked "Tacro, Swiss" on the face, and "Swiss Made" on the back. Very good condition. Plastic case measures approx. 3" x