New Proudly Made In USA compact light weight sluice box. Super light approx 3.5Lbs Alum Box, approx 30in long x 7 1/4in wide 5 large Metal riffles zinc plated to prevent rust has a removable flair, su

 

Lot of 10 Uranium glass beads! These are good to safely test Geiger counters with. They also glow brightly under black light. Very fun items to give that science nut in you family! Most of my items fo

 

Brass tag says "GELSENKIRCHEN", Brass Sledgehammer and pick on 6 1/4"diameter black 5/8 thick material that is embossed to look like coal.there is a brass pin that comes out the center to hang the bra

 

This is model no.316 and includes a really neat handheld microscope. Excellent condition. FREE S/H!!....US only, please

 

Slide rule c 1959 belonged to former Congressman Bob Filner who started college as an engineering student before switching majors and obtaining his PhD in history of science.

 

This is a old collectible Devco mechanical slide pencil. I have many machinist and mechanical drawing items that were from an elderly mans estate. I can hear pencil lead when I shake it, but I am not

 

Up for auction is a very good example of a vintage physician's license plate topper. This topper is still in it's original box with the instructions and original hardware. The topper frame is made of

 

Antique Microscope Slide by Norman. Indian Wood. Native name Oke Lutta. See images for condition. Excellent. I ALSO BUY ANTIQUE MICROSCOPE SLIDES. VISIT www.antiquemicroscopeslides.co.uk FOR MORE INFO

 

Keuffel & Esser Compensating Polar Planimeter 4242 Good condition. Serial #13158 Comes in fitted case and box with 2 manuals and a paper with factors for scale drawings or maps. Outer box is prett

 

For sale here is a David White Co. 6061 Balloon Theodolite. The plate says No. 91024. Olive green in color and comes with wooden storage/transport box. Box is sturdy but has many scratched, nicks and