In good condition a microscope platform accessory with 4 Objectives in its original box by Meopta Praha.Unsure what it is called any help would be appreciated.The platform measures 3 3/8ths in diamete

 

up for auction is: A Graybar General Catalog No. 105 published in 1958. This Graybar catalog covers "Everything Electrical". This book is clean - no writing detected - one stray pen mark on first page

 

AN "ERNST LEITZ WETZLAR No 192163"BINOCULAR MICROSCOPE.RACK GEAR IS WORN AS SHOWN IN PICS 2 & 3SOLD FOR SPARES REPAIRS PARTS ONLY.A GOOD QUALITY MONOCULAR MICROSCOPE WHICH APARTFROM THE RACK SEEMS

 

What you see in picture is what you get. It's in very good shape. Bid with confidence, my feedback speaks for itself. Posted with eBay Mobile

 

Hi,I have this Post Versalog Drafting slide rule with leather case does have some scrapes on case and inside tongue has been blacked out besides that in vg condition and rule is in vg condition I dont

 

Pickett slide rule model N-515-T in CLEVELAND INSTITUTE OF ELECTRONICS with the leather case. As seen in current hit movie HIDDEN FIGURES This is the only simplex rule for which I show both front and

 

The tape refill is made my Keuffel & Esser (K&E) and is model 88 0017M. It is steel with a white face. The tape if 100ft long and marked in feet, 10ths of feet and 100ths of feet. It is 5/16th

 

Here we have a very interesting Early Antique All Brass Microscope which is engraved by the Makers '' J. P. Cutts Sutton & Son Optician to Her Majesty . Sheffield & London '' As can be seen th

 

!--Copy from here--> 461 Fulham Road, London, SW6 1HL A very fine example of an ivory E.Preston rule. All securing pins are present. The only minor damage is a slight lifting on one hinge and one t

 

Appears to have have been used! Purchased at an estate sale in a plastic bag. The bag is split on the side BUT everything in it seems unused. Fullerton Circular Slide rule 1450. Please see pics for co