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Posted by / 03-Mar-2019 21:12

K e slide rule dating

It is a one sided rule with nine scales, P, F, A, B, T, S, CI, C, D, The condition is pretty nice. The previous owner did inscribe the back w/ his name as shown. Click for Pic Click for Pic Click for Pic Click for Pic Click for Pic Click for Pic SR-KE4110 Good . The serial #'s numbers on the brass scale are 8590 - 45 that indicates it was made in 1945. The wooden end caps have some finish loss, and one appears to have been glued. That would date it from the mid 1950's a few years after the Type 2 Curta was introduced.It has the brass external mount feature so that the slide rule can mount for use on the outside of the box. The short pointer is marked Fuller Calculator, and Made in England. The bottom of the calculator is says Made in Liechtenstein, by Contina AG Mauren. This bamboo and laminated plastic sliderule is about 11" long.Curta Calculators are a must have for any collection concerned with the history of Calculation and how it has progressed. Click for Pic Click for Pic Click for Pic Click for Pic Click for Pic Click for Pic Click for Pic Click for Pic Click for Pic Click for Pic Click for Pic Click for Pic Click for Pic Click for Pic CS-T2-CURTA-539904 Good . Some guys my age buy the nice car they never had in high school.This work was quoted many times from Cajori in his book "History of the Logarithmic Slide Rule" Antonio Favaro was my grandmothers brother!This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it.The condition of it, the black plastic case, the outer leather case, and the paperwork are all excellent. It adds, carries, zeroes out, the sliders are free and smooth, etc. A very nice early Curta in its original plastic case that will make for a good user for car rallies or other applications.Curta Calculators are a must have for any collection concerned with the history of Calculation and how it has progressed. This unusual slide rule was never offered in a K & E catalog.

This 2 tone Curta comes with 2 pieces of original paperwork.There are no names, initials, or other carved into the box, base, or calculator.The Thacher calculator has a near unique sliding drum design whose scales total over 30' long if laid out in a line.The long cursor in addition to having the date and serial number is graduated along one edge. Click for Pic Click for Pic Click for Pic Click for Pic Click for Pic Click for Pic Click for Pic Click for Pic Click for Pic Click for Pic Click for Pic Click for Pic Click for Pic JNK-FULLER Good . The Curta calculator was first developed or conceived / invented by Carl Herzstark while imprisoned in a German concentration camp during World War II. The case says it is an 1876, and that is US Blue Co's number. If you have similar antiques or collectibles you want to sell please see our FAQ Page, the Appraisal / Selling Page, and the Selling Your Collection Pages for further info about selling with us.This 2 tone Curta comes with 2 pieces of original paperwork. 5.00This wood and laminated plastic sliderule is 14" long and like new in the box w/instruction sheet. This rule has its own Sun Hemmi number that I could not figure out and the rule itself has no model #. To view examples of the types of antiques and collectibles we have previously sold and are always interested in helping you sell please visit our Past Sales Archive Pages at our sister website

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The scales on the outer frame are near perfect as well.