Developed during WWII to test visual acquity for the military by the remarkable Dr. Isreal Dvorine, these color plates were painstakingly developed, tested and re-tested to accurately detect, classify

 

Here is a working "GUY'S DROPPER" brand miner's carbide lamp (later model with no Patent dates on top - circa 1940's) designed to be worn on a miner's hat/cap. This gently used lamp has a 2 5/8" refle

 

Up for auction is this vintage Swiss made Sears dial caliper 5" capacity and a small Roe wood & brass caliper. This would be a great addition to any collection. All items are sold "as is" so pleas

 

bluemoonalone Store SPRINGFIELD DESK/TABLE/MANTEL TOP WEATHER CENTER BAROMETER THERMOMETER HUMIDITY

 

THIS LISTING IS FOR A 1903 MINING BOOK THAT IS SOMEWHAT UNUSUAL. IT IS TITLED: “McNeill’s Code – Mining and General Telegraphic Code” AND WAS PUBLISHED IN LONDON. THE BOOK IS ALMOST 800 PAGES

 

Vintage Rapidograph / Leroy parts. Various pens including 2 size 00 2 size 0 3 size 1 1 size 2 1 size 2 1/2 and 2 size 4. along with 3 pen holders. Other misc pen parts. Two bottles of Pelikan drawing

 

Vintage Eagle Pencil Co. USA Drafting Tools with Case 9520 FBONUS K & E DRAFTING STENCIL15 PEICES IN ALL INCLUDING EXTRA PENCIL LED AND 2 LED HOLDERSANY QUESTIONS PLEASE ASK AND CHECK OUT THE PICT

 

Here is a wonderful very heavy 1944 REL/Canada binoculars in very good condition. Has Graticule 1/2 degree apart and 1/4, 1/2, 1 degree high. This is on the right side of the binoculars on the left si

 

This listing is for a Tasco microscope. We are primarily a tool dealer and do not know much about telescopes. This one was brought to us to sell. The telescope is from the 1970's and does not look bad

 

This is a Vintage Handi-Grip Fever Thermometer by Cornell Instruments from 1946. It is New Old Stock and still has inspection certificate with serial number and date. The outside of the box is worn fr