N600-ES Speed Rule with case Used. Ruler itself is in great shape. The leather case is a bit rough. When you pull on the tab in back it does pull the ruler out about 1-2 inches - so that is working. I

 

Specifications: Name: 4D Human Anatomy Model dimensional puzzle 1:1 human kidney anatomy teaching aids Package Length: 29.5 cm Package Width: 22.8 cm Packaging Height: 6.9 cm Packing list: human kidne

 

Hello , I have a United Central M40 M gas detector used in a West Virginia underground coal mine i bought it 2 years ago but out of 2 years its been used for about a year, the plastic screen cover is

 

Atlas Powder Co., Explosives wooden box with dovetail corners in decent shape. Measures 13 3/4" long, 9 1/2" wide and 8 1/8" high. Pictures show condition. US bidders only. Any questions just ask. Goo

 

I apologise for my poor attempt at Close Up Photography .. this Micro Photograph is far brighter and clearer in real life ! Label states: EMINENT MEN .. A PHOTOGRAPHIC CURIOSITY FOR THE MICROSCOPE ..

 

Vintage Surveying Transit Wooden LEVELING ROD Manufactured by David White ( Just part of that sticker is left ) 14 Foot near its max as shown Reduces down to 63 inches when collapsed for storage ( 5 f

 

Here is a nice Springfield thermometer on a wood plaque with a AEP Appalachian logo.This is a great advertising collection for the Appalachian power company.The plaque is approximately 8 inches tall a

 

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

 

Antique Microscope Slide by Watson. Spermatozoa. Five Typical examples. Man/Bird/Fish/Snake/Frog. See images for condition: Cover slip across Man (I) badly broken. All other samples unaffected. I ALSO

 

Set of vintage drafting tools in the original case which is in good working order.Comes with double-sided ruler with inches and millimeters (6 inch ruler)Comes with a six inch ruler that has 32nds and