Lafayette 5" Pocket Slide Rule 99-7030 * Vintage Old Store Stock w box logarithm

Description

Welcome to my store:
Item Description:
-- Up for your consideration:
Slide Rule.
Maker,
Lafayette Radio Electronics Corporation, Instrument Division, Long Island New York, Made in Japan
Item,
Lafayette 5" Pocket Slide Rule No. 99-7030
-- Extremely Accurate. Standard S, L and T Scales
Condition,
This is in wonderful minty condition. Only original box shows some wear.  NEW OLD STORE STOCK.  Rare to find it in mint condition.  It looks unused, still has the box, the booklet, and leather case. I think I may have been the first to ever open it.  The booklet shows some discoloration, probably oxidized by the leather case.  As is, as found.
Details,
A manual measuring and calculating device.
The slide rule, also known colloquially in the United States as a slipstick, is a mechanical analog computer.  As graphical analog calculators, slide rules are closely related to nonograms, but the former are used for general calculations, whereas the latter are used for application-specific computations.
The slide rule is used primarily for multiplication and division, and also for functions such as exponents, roots, logarithms, and trigonometry, but typically not for addition or subtraction. Though similar in name and appearance to a standard ruler, the slide rule is not meant to be used for measuring length or drawing straight lines.
Slide rules exist in a diverse range of styles and generally appear in a linear or circular form with a standardized set of graduated markings (scales) essential to performing mathematical computations. Slide rules manufactured for specialized fields such as aviation or finance typically feature additional scales that aid in calculations particular to those fields.
At its simplest, each number to be multiplied is represented by a length on a sliding ruler. As the rulers each have a logarithmic scale, it is possible to align them to read the sum of the logarithms, and hence calculate the product of the two numbers.  ~ From Wikipedia
Box measures 7 3/8 x 2 1/8 x 7/8 inches. Everything fits nicely inside.  Ideal for vintage tool and math fans.
We appreciate your consideration of one of our novelty items.  We strive to offer fast, courteous and professional service to all our patrons.  Please inquire for further details, our items arrive shrink wrapped and well packed. ~ Thank you for viewing stopping by.
Enjoy!
Location:
Ebay box 1
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THE IMPORTANT STUFF
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All items, as found, as shown.   -- Satisfaction guaranteed.
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Shipped by USPS: Arrives shrink wrapped, well padded, ready to enjoy.
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We ship every Tuesday & Thursday after payment is received.
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Yes!
We combine shipping on multiple item orders!!
This is the
actual
item as seen in our photos.
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settings.
--   We're located in Ventura, California, USA.
Hello,
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-- Retailing since 1985       -- Selling online since 1994       -- At eBay since 2005.
Have a wonderful day,
Max Rainet
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Max Rainet
- Awesome collectibles for a creative thinker.   Delightful things to use, play with or enjoy in your collection.
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Colors
may
vary slightly
due
to your
monitor
settings.
Yes !!
-- We combine shipping on multiple item orders!!
The particulars:
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Satisfaction guaranteed.  14 day conditional return policy.  Please inquire.
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The important stuff:
NOTICE
for
POSTAGE to ITALY;  ITALIA:
Please note due to erratic service inside Italy, this item may require extra costs to ship internationally to ITALY,  which will be paid by the buyer.
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This item is being
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