Although this vintage Keuffel & Esser slide rule is used, it is in excellent condition, as is the leather case. It is 12.5" long. Made in New York in 1947. Owned by a development engineer for Borg

 

A Collection of Circular Slide Rules and Calculators. See photos for what is included. All are in very good condition except the Range Computer which has 3 internal cracks in the back plastic disk. So

 

Payment and Shipping Notice: Be sure to read the payment and shipping requirements at the end of the auction description before bidding. Buyers with less than 10 feedbacks and/or a percentile of less

 

This is an old brass kaleidoscope. It stands 9.75" tall and works great - the images it creates are beautiful. The pictures do not do it justice. It shows wear and age, but no dents or damage. It can

 

PLEASE READ ALL THE TERMS AND INSTRUCTIONS AND ASK QUESTIONS BEFORE BIDDING. THANKS WE WILL GLADLY COMBINE SHIPPING ON MULTIPLE ITEMSBid now or use the "BUY IT NOW" to assure that you win this ITEM: S

 

I am offering a picket trigonometry slide rule and case in excellent condition. Good luck and happy bidding. Posted with eBay Mobile

 

1940's Era Bakelite and Chrome Weather Station By Taylor Instument Companies Rochester, NY, U.S.A. It appears to be in working condition. It has been sitting on a shelf for over 30years. It is very Ar

 

YOU ARE BIDDING TO BUY AN OLD PAIR OF BINOCULARS IN A CASE (VERY SHABBY).BINOCULARS HAVE THIS WRITTEN ON,"THE AUTOMATIC SIGHT TEST AND OPTICAL SUPPLY CHANCERY LANE LONDON" WE DO COMBINE POSTAGE. P&

 

10 inch Deci Lon slide rule 688 1100. The slide rule itself is in great condtion. The leather case has residue from a sticker that was on it, has belt loop clip. USA shipping only unless prior authori

 

Up for auction is a vintage David W. Mann Inc. transit # 73801.The piece has some wear and crazing to the paint throughout.I can see the cross hairs in the lens clearly.It measures 9 3/4" high x 9 3/4