Here is a lot of Mathematical devices, Calculators, a Faber Castell Slide Rule Made in germany and a Casio Electronic Calculator For Parts Only. The Slide RUle Is Functioning!

 

ALL 3 IN GREAT SHAPE, ACCORDING TO THE PERSON I BOUGHT THEM FROM ONE OF THEM IS DATED 1905 AND THE OTHER IS DATED 1910. THEY ARE MARKED THAT WAY. THE 3RD IS DATED.

 

K&E LEROY CONTROLLED LETTERING SYSTEM # 61 2901 COMPLETE SYSTEM INCLUDES EXTRA INK: 2 - BOTTLES OF KOH-I-NOOR 3080-F 2 - BOTTLES OF KOH-I-NOOR 3084F 1 - BOTTLE OF SCHWARZ NOIR PELIKAN INK 22 A 366

 

Vintage Lot of 20 Dental Double Ended Tools Lot includes tampers, scrapers & picks. 4 Clev-dent, 4 Starlite, 3 Bush, 2 Haynes & 7 assorted This vintage Lot of Dental Tools Set is in good light

 

I AM PLEASED TO OFFER THIS SCARCE VINTAGE 1962 SIC SCIENTIFIC INSTRUMENTS CO CIRCULAR SLIDE RULE MODEL # 120 PROFESSIONAL - INSTRUCTIONS - CASE - ORIGINAL BOX - AT AUCTION (SEE IMAGES). I RECENTLY ACQ

 

Here we have a Very Fine Early Wooden Display / Storage Cabinet with Glazed Door with Lock / Key which is designed to Display a Total of FIVE HUNDRED Microscope Specimen Slides that measure the usual

 

As found. Looks complete but I'm not sure. You get what you see.

 

Three vintage rules - Fisher Governor Company, Marshalltown, Iowa U.S.A. - Pickett - Fisher Control Valve Sizing Rule. In leather case w/two supplements Sterling U.S.A. Metric Converter Vintage wood C

 

Here is a very-good-condition, vintage wooden slide rule from Keuffel & Esser Co. that comes with its original leather case. The slide rule measures about 10.5 in. long and features equivalents an

 

twix Store Antique Doctor's Otoscope / Ear Trumpet Set With Case Canadian bidders - We are a registered business, if you are a Canadian resident, add GST - if you live in Ontario, please add HST. Cana