3 vintage slide rules: 1. The Warner & Swasey Co., Cleveland Ohio. 2. Acumat Acu Math no. 600. 3. K +E #681210 Log.Log Duplex Decitrig c. 1947 by Keuffel & Esser Co. Winning USA bidder pays pr

 

Vintage Omicron beam compass that allows for drafting circles up to 72 inch radius. Wood box is 5 1/2 by 2 7/8 by 3 1/4 inches deep. Box shows some scuffs and previous owner put his initials on box. C

 

Up for auction we have a Vintage GE General Electric Wind-Up Interval Timer For X-Ray Dark Room Works well. For its age this timer is in almost MINT condition. From a PET and Smoke Free Home. Please A

 

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

 

PLEASE READ THE ENTIRE DESCRIPTION! I'M NOT AN EXPERT IN ANY AREA. EVERYTHING SOLD AS IS. I do not pre-pack my items so shipping estimates may be high. I will refund the majority of the difference if

 

Collection Chinese Antique Brass carved Kaleidoscopes With dragon Size :18.5*4.2 cm Payment We only accept paypal Shipping The package will be send by air mail with tracking number.usual shipping time

 

Please note: this item is being sold on consignment, please allow for up to 5 days for shipping. Hello, up for auction is an original vintage drafting tool. Please view the images closely to see their

 

This is a unknown item ,it appears a lens for a camera or microscope or maybe projector, it is in 2 parts one a small domed on the underside lens approx 11 mm wide in the black metal mount ,the other

 

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

 

Vintage D.W. Brunton Pocket Transit Compass - Wm. Ainsworth & Sons