Delbridge Precision Interest Tables
St. Louis, Missouri, Delbridge Calculating Systems, Inc. 1947, Not Stated Assumed First Edition. Hard Cover, 4to - over 9¾" - 12" tall. Pages clean, unmarked, binding tight and square; indexed with cloth tabs, for ordinary, exact interest factors, and conversion charts. Includes a full page, three color [red, green, black], "Elapsed Time and Maturity Calendar" for the years 1946 - 1948. This page is divided into two halves with two cover stock pages each of which folds up to open another year. Brown leatherette boards, gilt and red lettering, mostly clean, bright, a little shelf wear to extremities. Subtitle: "No.120 Interest Calculations at Lightning Speed with Precision Accuracy". This wonderful relic of times past would make a great present to anyone who cannot imagine life before calculators and computers! There are 4 pages of introductions and explanations, all others  are charts et al. Media Mail, Priority & most international shipping include free tracking information. Every book listed is located in my smoke free and climate controlled shop. All are inspected by me and will have qualities and/or flaws described. Very Good/No Jacket.
Inga's Original ChoicesProfessional seller
Book number: 003449
USD 38.00 [Appr.: EURO 33.75 | £UK 30.25 | JP¥ 4163]
Keywords: Antiques & Collectibles, Books, General, Business & Economics, Interest How To Science & Technology