a circa 1900 brass and chrome sub-stage adjustable iris, the diamiter inner is 3.7cm outer edge is 3.8cm to attach to your microscope. I will be listing more microscope items, please take a look as I

 

Set of five brass weights marked YOKO. Largest weight is 1 KG and smallest if 50 g.

 

ART MEETS SCIENCE: Antique Spencer Brass & Copper Microscope of Academic Yesteryear This takes one back to the laboratories and classrooms of yesteryear’s universities. This vintage scope is res

 

PRIMITIVE ORRERY PLANETARIUM Garage sale found: Fully functional, Orrery 12” long (with the handle), 11” tall, 8” wide. The mechanism is in good working order: by turning the rod, world globe ci

 

For you Carbide Lamp collectors... This is a very cool original and complete "JUSTRITE POCKET MATCH SAFE" The photos you see were taken deep underground where this Justrite Match Safe was found and a

 

This is a collectible, miners carbide cap lamp. Rare X-RAY. Older type pre-Justrite design. Marking stamped X-Ray on bottom. A miner has scratched his name on the bottom of the cabide chamber, it is n

 

For auction is what appears to be an antique authentic brass Mortar and Pestle of indeterminate but suggestive 19th century construction. At 5” tall and 4.25” circumference the mortar is a heavy ~

 

This Bottle is 7.75" tall, and weighs 15oz.. In excellent condition. I has the original label. I have not cleaned the inside for fear of damaging the label. As found at an Estate Auction in Central Co

 

One of a kind 1872 Invention. Original US Patent Model of a Steel Capped Railroad Rail for Steam engine trains. Inventor J.L Booth! Up for auction is an amazing original patent model that has survived

 

AWESOME SET. ATTIC FIND. PLEASE CHECK OUR OTHER LISTINGS AS WE COMBINE SHIPPING. THANK YOU