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

 

AMAZING!!! Circa 1980s FIS Drug Identification Kit in Travel Case. Great "samples" of both legal and illegal forms of drugs and methods of use. Even has 2 keys to lock the case. Size of the average br

 

K & E KEUFFEL & ESSER MODEL 68 1210 SLIDE RULE AND LEATHER CASE . All in Excellent condition with little signs of use . Made in USA. Has Pats. Pend Made in USA 68 2810 LOG LOG DUPLEX DECITRIG

 

Very beautiful 1880 antique microscope slide of cross section of elephant foot pad for viewing with polariscope and selinite. Mounter is HB Thomas Posted with eBay Mobile

 

4 boxes of vintage dental teeth Steele's New Hue

 

Vintage Sunbeam Weather thermometer, barometer and humidity reader. Works great! It has wood frame. Delivery to 48 lower states only. No returns or exchanges. Payment through PayPal only. Will be ship

 

No scratches on the glass. Delivery will be made 48h after item payment, it will arrive depending the post office schedule and custom office. If after seven days of purchasing the item, payment is not

 

Vintage Keuffel & Esser Co. slide rule. Case and ruler show slight wear from use and age. There is a name written just on the inside flap of the case as shown in the pictures.

 

IMPORTANT-PLEASE READ BEFORE PLACING ANY BIDS!: IF THIS ITEM IS MECHANICAL OR IS SUPPOSED TO MEASURE SOMETHING WE DO NOT KNOW IF THIS IS IN WORKING CONDITION, UNLESS WE POST OTHERWISE, CONSIDER THIS A

 

Set of vintage drafting tools in the original case which is in good working order.Comes with double-sided ruler with inches and millimeters (6 inch ruler)Comes with a six inch ruler that has 32nds and