Very nice circa 1950 Eugene Dietzgen slide rule 1744 with original box, leather case and paperwork. No damage to anything other than some wear to outside of cardboard box only and in very good conditi

 

This is a Vemco V-Track drafting machine used in a land surveying office. It is in very good condition and good working order. It includes 6 scales- 10/50, 20/40, 30/60, and 2 inches and metric. See p

 

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

 

Antique Torrid smeltering furnace, stamped NO. 15.& also marked made in Chicago USA. Measures: approx 11" height. Please see Pictures as they are part of my description, additional pictures availa

 

I have on offer a lovely German GB Gustav Becker? working ships clock and barometer. The wooden mount measures 12" X 6", and the dials measure 3 3/8". Offered for sale in superb working condition, and

 

Carl Zeiss Apl NA 1.4 Phase Contrast condenser Here,up for auction, is a Carl Zeiss Apl NA 1.4 Phase Contrast condenser. This is a top quality used Zeiss condenser in good condition. The Apl NA 1.4 co

 

I found this deep in a box in my garage. I don't remember where I got it, but here it is in beautiful shape.

 

A saccharometer was an instrument designed to calculate the suger content and thereby the potential alcohol of wine or beer. This value was essential when calculating the amount of duty. In early year

 

The Kit Includes: 1 - 10" Green Gold Pan - The GREEN color contrasts the BLACK sand and the GOLD in your pan. 1 - Suction Tweezers - Suck up the fine gold and move it to your storage vial. 1 - Plastic

 

Chemcraft Chemistry Outfit No. 5 in original box. Has some missing items but overall a nice set. Case has latch to close the box. Closed box measure 14" long X 10" wide. No dates visible. Payment by P