A Collection of Circular Slide Rules and Calculators. See photos for what is included. All are in very good condition except the Range Computer which has 3 internal cracks in the back plastic disk. So

 

These are metal pens that look just like a syringe. Very heavy and unusual. One of a kind! They are new, never been used but there is some cosmetic damage to each one which is why they're being sold f

 

Kind of a puzzling item, have had a bunch of opinions as to what this was actually used for, I think it was a tool used in the medical field, designed to create suction when placed on body part to pos

 

This is "Bonnie Star", a handheld kaleidoscope by Corki Weeks. This beautiful scope has a glass body with lovely accent pieces. There is a 2-mirror system that produces lovely delicate images that are

 

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

 

i000000 Cased PENTAX AL-6B Surveying Scope Theodolite inc Plumb Bob Old Tool Click Images to Enlarge Because of its weight overseas buyers interested in this item MUST contact me before bidding to che

 

I'M SELLING THESE FOR SOMEONE ELSE AND I KNOW NOTHING ABOUT THEM. WHAT YOU SEE IN THE PICTURES IS WHAT YOU GET. THERE ARE FIVE .05,AND FOUR .25 TOKENS. YOU SHOULD BE ABLE TO SEE ALL DATES AND ENOUGH D

 

Vintage Brass SALEM Ships Wheel Compensated Barometer, Working, 2 small dents, 4 1/2" diameter and 6 1/2" outer wheel diameter,  weight 1 pound 8 ounces, see 7 pictures. Click on the picture to enlar

 

Mining Districts and Mineral Resources of Nevada Paperback book by Francis Church Lincoln. Published in 1982. It is a photographic reproduction of the 1923 first edition. It is in great condition, all

 

A comprehensive professional quality vintage technical drawing set with steel reinforced pivots. The set comprises: Multi-function holder - length 156mm. It has a hinged and adjustable pin and offers