Cenco adjustable spark gap by Central Scientific Company. Ask questions and look at pictures. All items are sold AS IS, All sales final, No returns so please bid accordingly. Buyer pays shipping, hand

 

Poly phase Duplex Slide Rule. The owners name is on the box H.A. Dohertry. Pat. Dates June 5, '00 Dec. 22 '08.The box is in good condition outside. Inside area where you take the cap off, cardboard is

 

I'M SELLING THESE FOR SOMEONE ELSE AND I KNOW NOTHING ABOUT THEM. WHAT YOU SEE IN THE PICTURES IS WHAT YOU GET. THERE ARE 6 DIFFERENT COINS FROM 3 DIFFERENT OLD MINES IN KENTUCKY AND TENNESSEE. INDIAN

 

Dazzling displays of color and patterns.Beautifully crafted wooden Viewer is 10" x 3" Tube Filled with liqujid & colored crystals 11 1/2"No need to mechanically turn or move the viewerYou simply p

 

ANTIQUE MICROSCOPE SLIDE BY A.C.COLE. PILULARIA GLOBULIFERA. No.22. FROM VOLUME I ISSUED IN 1883. SEE IMAGES FOR CONDITION. EXCELLENT. I ALSO BUY ANTIQUE MICROSCOPE SLIDES. VISIT www.antiquemicroscope

 

You are bidding on a very rare Lee Norse Coal mining sticker. This item is still on its paper backing and has not been used. It does curl up when let go, hence why we used a scanned image. Very nice p

 

Up for auction is this vintage Swiss made Sears dial caliper 5" capacity and a small Roe wood & brass caliper. This would be a great addition to any collection. All items are sold "as is" so pleas

 

Offered for your bidding consideration is a vintage dental drill in working condition. The previous owner was a United States Navy Dentist during the 1950's and 60's. Thanks for looking and good luck

 

Here is a nice Springfield thermometer on a wood plaque with a AEP Appalachian logo.This is a great advertising collection for the Appalachian power company.The plaque is approximately 8 inches tall a

 

17 scales 12" long. Cursor and center slide bar move smoothly. No writing on slide rule or case. Front Scale K, A [ B, ST, T, S, C ] D, DI Back Scale DF [ CF, CIF, CI, C ] D, DI, L