KEUFFEL & ESSER CO. PLANIMETER NO. 4236 Serial No. 253 Constant 214.92 Item is in excellent condition and shows very little if any use. Great piece for a collector. Shipping to USA only Made in Ge

 

 

This is an old brass kaleidoscope. It stands 9.75" tall and works great - the images it creates are beautiful. The pictures do not do it justice. It shows wear and age, but no dents or damage. It can

 

Vintage Antique Danish or German Precision Aneroid Wood and Brass Barometer. It measures 7" wide by 2-1/2" deep. The wood appears to be and has all the characteristics of solid Mahogany, but I can't s

 

OUT OF PRODUCTION, DR. BREWSTER'S ULTIMATE PRECISION KALEIDOSCOPE KIT BY VAN CORT INSTRUMENTS, INC. NEVER USED. BOX IN EXCELLENT CONDITION. COMES WITH INSTRUCTIONS. ONE ITEM HAS HAD THE PLASTIC OPENED

 

Spencer Lens Co. Buffalo series microscope w/ original wooden case &key. Includes 2 objective lenses( 4x &10x), 2 eyepieces(20x&5x), & 2 metal storage cases. All mechanisms work, no de

 

 

Vintage coal miner's, carbide hat lamp. Patented in 1916 by Universal Lamp Co. Very Good condition. "It's Trouble Proof"

 

This is a large capacity continuous cooling mercury recovery retort, designed to purify your mercury while separating it from your gold. The water chamber is 9 long, 4" tall and 2" wide with a 1/2" ou

 

Rugbyman Store Vintage Zonite Glass Medicine Measuring Cup Medical Beaker 1 Tsp 2 Tablespoons This is a vintage ZONITE glass medicine measuring cup. It has 2 tablespoon capacity and has lines of measu