Vintage Keuffel & Esser Co. slide rule dated 1947. It comes in the original case and also includes the instruction manual dated 1936 Powered by eBay Turbo Lister The free listing tool. List your i

 

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

 

both have there cases the one w/ box is all metal both are picket

 

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

 

This is a very nice 1962, Pickett Sliderule, N-500-T, with a leather case, both in excellent condition. The case has 2 previous owner's names inside the flap,9 Ounces

 

genespwan1 store W & LE Gurley Antique Surveyor Transit

 

Up for bid is a set of vintage Lefils opera glasses from Paris that comes with a case. They are Mother of Pearl & Brass. I don't see any numbers on them but they are marked Lefils and Paris on the

 

This is the 21st Century Gold Pan. It is called "The Screw Pan." It is the only Concentrating wheel and Gold Pan combination in one. This pan also works in the desert----DRY. Very easy to operate. Hol

 

Here is a unique kaleidoscope made from the actual Coney Island Mermaid glass 12 ounce beer bottle! It has a two mirror system using front surface mirror. The objects are all made by hand and are glas

 

Vintage Pickett Synchro Scale Slide Rule Model N600 ES Both Slide Rule and Leather Case are in Excellent Condtion Made in Santa Barbara, CA