This slide rule is used to calculate dew point andrelative humidity 11 inches in diameter and 20 scales

 

BODYMAN1953 store Arithma Addiator Vintage Math Scale ** COLLECTIBLE **Arithma Addiator Vintage Math Scalewith stylestVery NeatMEASURES 6 1/4 x 1 1/2 in. DON'T KNOW MUCH ABOUT THESE KINDS OF ITEMS ##W

 

Vintage Airguide Compensated Barometer Small Ships Wheel Nautical DecorVintage Airguide Compensated BarometerShip's Wheel Designed CaseSmall size at 5 1/2" in diameter x 2" deepWe will ship this via t

 

alugal2 Store A quality barometer made in "West Germany" Has beautiful porcelain dial Mounted in what appears to be fine close grain mahogany I will pack carefully and ship swiftly!! Enjoy!!

 

Up for auction is a vintage Bruning electric eraser. This item is in great working condition and has had very little use. There is a very little paint loss from where the case rubbed on my Dad's draf

 

UNITED STATES SHIPPING ONLY please made offers thanks 3 days to pay

 

smartcNa Store FOUR UNIQUE SLIDE RULES Navigational, Legible, 2 x Log Log All celluloid on wood, all have printed tables on the backs. "Legible" and "Log Log" are very clean, both have tables under th

 

Pre dating 1920 East Germany , This very rare set, found at a Estate sale with blow your mind with a straight face an line ask anything. ...

 

PLEASE MAKE SURE YOU READ ALL TERMS PRIOR TO BIDDING! ********************************************************************************** YOU ARE BIDDING ON A: NEW ITEM Vintage Alvin 961A Beam Compass

 

Specifications: Name: 4D Human Anatomy Model dimensional puzzle 1:1 human kidney anatomy teaching aids Package Length: 29.5 cm Package Width: 22.8 cm Packaging Height: 6.9 cm Packing list: human kidne