Antique wooden slide rule made by Keuffler and Esser Co. of New York. Patent 1,934,232. I'm told these are from the 1930s and I believe the 38 reference on the leather case refers to the individual's

 

VINTAGE COLLECTIBLE KALEIDOSCOPE WITH A TWIST DESIGN BODY, UNSURE OF ITS AGE, IT DOES HAVE SOME CRACKS AS SEEN IN PICTURES, ONE AT THE BOTTOM, 5 AT TOP, GLASS BALL SHOWS NO DAMAGE, SOME LIGHT NICKS AN

 

<div style="text-align:center"><img src="http://ti2.auctiva.com/sw/java.gif" border="0"><br><table align="center"><tr><td height="28px" valign="middle" align="center"&

 

Original Keuffel & Esser Planimeter in original box. Germany. Posted with eBay Mobile

 

RARE Vintage Russian anemometer in original box ( with passport ) made in 1953y Measures (box) : 8'' x 4'' x 3,3'' Weight : 0,5 kg

 

*Vintage* Leeds & Northup 1950s Potentiometer Nuclear Era Model R88 Product Description PLEASE READ CAREFULLY! Up for bid is this *Vintage* Leeds & Northup 1950s Potentiometer Nuclear Era Mode

 

GOATFREAK64 Store VINTAGE FREDERICK POST ENGINEERS SLIDE RULE 1447 P HEMMI W/ CASE 3 THIS IS A VERY NICE VINTAGE FREDERICK POST COMPANY ENGINEERS SLIDE RULE. MARKED NO 1447 P, FREDERICK POST COMPANY C

 

Up for auction is a 1800's. KEUFFEL & ESSER Co. NEW York and 74482 this is an Engineer's Mountain and mining Transit model 74482 it belongs in a Museum for sure . There are clamps and tangent scre

 

PROPORTIONAL DIVIDERS by POST For Use in Craft, Art, Drawing, Drafting This PROPORTIONAL DIVIDERS is USED and comes in its original plastic case. Made by POST. No model number available. The dividers

 

You are bidding on an awesome lot of 34 twist Lipitor/Caduet Black Ball Point pens. They have a nice heavy feel to them and write smoothly. These are the jewel-tip ones. They look like they have a lit