small wooden box ,13 x 11 cm, with a set of napier,s bones or calculating tables made from wood. in good condition.

 

Here is a blank make your own slide rule kit from Dyna-Slide. There is a no 21 blank with a sealed envelope that I assume holds the hardware and an instruction book. Not a common rule to find, get one

 

musicreddog_0 Store Vintage Magnetic Compass Pocketwatch Case Conversion WW1 Era Verners Ptn' Card

 

Neat old Pyrex glass sterilizer with insert tray Used.Clean. Measures 101/2 by 41/2 by 3 inches tall

 

Real human skull from dental school. Purchased in the very early 1980's (if not older) Kilgore International Company, Clearwater Michigan. Original case, intact with little to no wear inside, skull wr

 

Absolutely superbly engineered scientific instrument dating back to late 19th Century, early 20th Century. Stainless steel of highest quality. Intricate, delicate and accurate. By opening the instrume

 

Up for auction here is a Vintage Butterfly Carbide Miner's Lantern Lamp with Mirror.This small lamp is in excellent condition. It measures 3 1/2" tall without the mirror. The maker is Butterfly. The l

 

ITEM DESCRIPTION: We are offering a set of two eyewash eyecups. One is a lovely red amberina, with yellow highlights at the bowl, and red at the thicker portions of the glass. The second one is a pink

 

Item: Vintage JOHN HENSCHEL Quick Change Precision Aluminum Pantograph w Instructions Condition: All items are considered used and sold "As Is", there are no guarantees. You get what is pictured. Plea

 

HALDEN CALCULEX CIRCULAR SLIDE RULE WITH CASE & INSTRUCTIONS Original two compartment case holding the slide rule & instruction book Book is 95 pages in excellent+++ condition- complete with n