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

 

no problems,nice condition,marked Aug 14,1917 John Bull 2- 1/2 in tall

 

musicreddog_0 store Antique / Vintage Carter of Exeter Four Draw Brass Telescope British Made A/F

 

bidoff10 Store DescriptionNOTE: please scroll down to bottom of page to view all pics. You are bidding on a vintage barometer that measures 7" wide (wood). Just found a whole collection of these in an

 

Up for auction is a pair of antique pilling biopsy forceps. They each measure about 6 1/2" long. The forceps operate but there is some surface rust to the finish especially towards each of the ends. P

 

With brass ends and Paper A'Cuve wrapped. Made by Van Cort Instruments Ltd. in the 1980's. In very good condition and original box/packaging.

 

i000000 Vintage NBS Glass Microscoope Slides Insects Hairs Click Images to Enlarge You are bidding on 3 boxes of vintage NBS GLASS MICROSCOPE SLIDES There are 6 glass slides in each box - two boxes of

 

These are metal pens that look just like a syringe. Very heavy and unusual. One of a kind! They are new, never been used but there is some cosmetic damage to each one which is why they're being sold f

 

Miner's Powder Flask Very Stout Construction in Excellent Condition ----------------------------------------------------------------------------------- A great miner's powder flask / blasting items th