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

 

You are bidding on a Vintage Charles Bruning Co. Electric Drafting Eraser No.3831 As you can see this electric eraser is in very good condition. It's clean and shows very little wear. I plugged it in

 

THIS IS A HANDSOME MEDAL ISSUED TO ATTENDEES AT A MICROBIOLOGY CONFERENCE IN 1939.IN VERY FINE+ CONDITION WITH MILD TARNISH AND MILD WEAR FROM HANDLING AND AGE. AS SHOWN.MEASURES 2"SQTHANKS AND GOOD L

 

You are bidding on a SUNDIAL COMPASS manufactured by Stanley of London. This is an attractive old Sundial Compass in its original mahogany box. The box has a crown plaque set in the top and instructio

 

Judd's NEW Old Stock Rotring Pencil You are bidding on a NEW Old Stock Rotring Pencil. Item Manufacturer: Rotring .7 mm Lead Item Condition: New Old Stock! PLEASE CHECK OUT OUR ABOUT ME PAGE TO FIND O

 

old drafting tools unknown condition lite rust on a few parts may be missing see on zoom private listing thank you for looking

 

Hello, you're looking an an Alvin 961 beam compass, made in West Germany. This was purchased in 1968. All appears to be in good condition. Please see my other auctions for related supplies. Thanks for

 

Great barometer, thermometer, hygrometer in laminated wood frame with ships wheel design around the barometer. Made in West Germany, in great working condition!

 

I see others up close to this and they call them SteamPunk,,,but,,i do know these to be Old Blast Furnace Glasses With Cobalt Blue Flip Down Lenses that Mount onto clear Protective glasses with a Spri

 

FROM A LOCAL ESTATE. VERY GOOD CONDITION. IT WAS USED LITTLE.. NO RESERVE.