This is a Crookes tube with multiple electrodes. The gas pressure is lower than most Crookes tubes, correct to allow electron emission in a straight line from the cathode disk while having enough air

 

I am selling 70 antique Apothecary Pharmacist bottles with polished glass tops made in Germany. From 50ml to 250ml bottles. Would also sell separately for 5.00$ each. Delivery costs would be re- calcu

 

This miner's oil wick lamp, from 100 years or more ago, has a stamping of "D" with "L" inside it - a well known mark. But under this is clearly stamped "KELTY" which I cannot find in any of the docume

 

OUR AUCTIONS ALWAYS START AT 99p AND HAVE NO RESERVE TWO ANTIQUE ARNOLD & SONS TROCARS AND CANNULAE, AS IN THE IMAGES. BOTH BY THE SAME MANUFACTURER, COMPLETE AND IN GOOD CONDITION, THE LARGER CAN

 

Great Antique Poison Bottle. McCormick & Co Insect Poison Bottle dated July 8th 1902. Bottle is in wonderful Condition for its age. There are surface scratches on it but none too noticeable unless

 

stephenduncan Store This is for the ANTIQUE FINE SHAPE MEDICINE BOTTLE CONTAINER that you can see in the images. This finely made fruitwood medicine bottle container is in very good condition but ther

 

beeje Store Vintage Dental Chalk Like Teeth - Metal Hinge

 

Normal 0 Normal 0 Scale is solid brass and appears to be complete and all original except where noted on the case repair. This style is intended to be suspended from a twine loop that suspends the sca

 

Blade has working locking mechanism.Tortoise perfect, blade in excellent conditionHandle 4" long x 7/16" wideCodman & Shurtleef were a Boston medical & dental tool manufacturer. Later bought b

 

Nice vintage industrial look phillips magnifying glass lens no scratches heavy iron base 10 3/4 ins tall 13 ins wide