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SLIDE RULES & CALCULATORS. |
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Dating to the late 1930's,
this is the Fowler Magnum Long Scale calculator designed
mainly for engineers, and consists of a series of concentric circular scales.
It was the largest of the Fowlers range before the Jubilee Magnum came along
in 1948.
In very good condition, with clean scales & a chip
free glass face, it comes in a special blue velvet lined presentation
case, and is in full working order.
It has a chrome backplate which is free of any dents or blemishes, and measures
120mm in diameter.
| Price |
Status |
Code |
Ship UK |
Overseas |
| £150 |
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SC1154 |
Free |
£12 |
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This is a nice example of a Fowler's
Jubilee Magnum Extra Long Scale calculator.
Designed in 1948 by Harold Fowler to mark the 50th
anniversary of the founding of the firm by his father William
Henry Fowler in 1898.
This was the largest circular calculator made by Fowler's measuring 12cm
in diameter, and it has a 79" long scale extending
over ten circles.
In full working order, with a chrome backplate, the scales are very clean,
and the overall condition of the calculator and its leather case is very
good. It also comes with its original instruction book.
| Price |
Status |
Code |
Ship UK |
Overseas |
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SOLD |
SC1065 |
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A nice clean example of a Fowler's
double sided Long Scale calculator, contained in its own
red velvet lined nickel plated case with the original bronze Fowlers
trademark disc on the inside of the lid.
This particular example has come from the RAF, and the previous owners name
is hand written in ink on the red feltbox lining and reads: ' P/O Wiggins.
D. M. RAF'
Known also as a 'Vest pocket' model, these double sided
calculators were recommended as the most comprehensive and accurate pocket
calculator ever made, and this model dates to the 1930's.
It measures 2 1/2" diameter and in good working order,
with nice clean scales on both faces, one side reads 'Fowlers Calculator'
and the other 'Fowlers Long Scale Calculator'
The overall condition is excellent, including the nickel
plated case.
| Price |
Status |
Code |
Ship UK |
Overseas |
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SOLD |
SC1115 |
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This is a quite unique circular calculator
which first appeared as an article in Fowler’s Mechanical Engineers
pocket book of 1898.
Although the calculator was sold through W H Fowler’s Scientific Publishing
Company it’s not clear who designed it or where it was made, but you
will see from the close up photos the central steel disc has the word ‘SWISS’
engraved on it, along with “THE MECHANICAL ENGINEER”
printed on the scale surface.
Fowler’s did not start producing their range of calculators until
1908, and it’s likely some of their designs were based on this first
Swiss model.
A very rare calculator measuring just over 2”
in diameter not including the crown & stem, it is in very good original
condition. The bevelled glass cover is free from any chips or scratches,
and the nickel plated case does not have any dents. The card scales are
very clean and legible, and the large milled crown rotates the whole dial,
with the side knob controlling the pointer needle.
Serious collectors of these items will recognise the importance of this
particular calculator which is well over 100 years old and probably deserves
to be in a museum for posterity.
| Price |
Status |
Code |
Ship UK |
Overseas |
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SOLD |
SC1090 |
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A near mint example of a
vintage Otis King cylindrical slide rule calculator with
a purpose made, felt lined wooden case. This is a model 'K'
serial no R1835, with very clean & legible
helical scales enabling numerous mathematical calculations, all detailed
in the original instruction sheet supplied.
The patent no is 183723, with scale 414 on the bottom,
& 423 on the top.
Made by Carbic Limited London during the 1960's,
it really is in excellent cosmetic condition and in fine
working order.
| Price |
Status |
Code |
Ship UK |
Overseas |
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SOLD |
SC1102 |
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A superb condition Fowlers
Universal circular calculator, in a special blue
velvet lined presentation case, which is embossed 'The Fowler Calculator'
in gold lettering on the lid.
In full working order, the six scales perform numerous mathematical functions
including multiplication, cube roots and and square roots. Measures
9cm diameter, all in very good condition (nice clean dial). Dates
to around the 1950's, and a true collectors item.
| Price |
Status |
Code |
Ship UK |
Overseas |
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SOLD |
SC1050 |
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A nice clean example of a Fowler's
double sided Long Scale calculator, complete with its own
leather case embossed with the Fowlers name on the strap.
Known also as a 'Vest pocket' model, these double sided
calculators were recommended as the most comprehensive and accurate pocket
calculator ever made. Measures 2 1/2" diameter and
in good working order, with clean scales on both faces.
The overall condition is very good, including the case, and comes with a
photocopied 1956 set of instructions plus a copy page from an original Fowlers
brochure advertising the Vest pocket calculator.
| Price |
Status |
Code |
Ship UK |
Overseas |
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SOLD |
SC976 |
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Nice condition Muldivo Mentor
pinwheel calculator incorporating 10 digit setting register, 16 digit results
register, and 8 digit revolution register, also has a back transfer mechanism.
Model WSR 160, serial no 224414, made in Germany by Walther
this is a quality calculator, the pinwheel mechanism being machined from
brass.
Not only a great conversation piece, but an unusual retro piece from the
late 1950's which would look great on an executives desk!
In full working order, overall dimensions, 11" x 6", weight around
6kgs, overseas buyers please email for shipping costs.
| Price |
Status |
Code |
Ship UK |
Overseas |
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SOLD
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SC893 |
Free |
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A vintage mechanical
calculator made by Atvidaberg - Facit in Sweden. The model
is the C1-13, this particular design was produced
between 1960 - 1964 and the serial number 799433 allows
us to date it to 1961. It has a 10 digit keyboard with
8 digit counter and 13 digit accumulator.
Cosmetically there are signs of wear and tear, with some paint loss, and
a small crack in the results window (see photo 4, the crack is just before
the number 3). However, it is in full working order, although the tips of
the plastic indicators are missing, but the slides still work and do not
affect the operation of the calculator.
This is a heavy item at around 6kgs, and measures overall width 11.5"
x 7.5"depth x 6" high.
| Price |
Status |
Code |
Ship UK |
Overseas |
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SOLD |
SC686 |
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Nice condition Muldivo Pinwheel
calculator incorporating 12 digit setting register, 18 digit results
register, and 10 digit revolution register, serial
no DER 160648. Similar to the Mentor in that it's fitted with a back transfer
mechanism, This transfers the number in the result register, centre right,
to the setting register, centre, which can be very useful in chain calculations.
Probably made by Thales in Germany this calulator is in full working order
with original plastic dust cover, and dating from the late 1950's. Overall
dimensions, 11" x 6", weight around 6kgs, overseas buyers please
email for shipping costs.
| Price |
Status |
Code |
Ship UK |
Overseas |
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SOLD |
SC548 |
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Fowlers Magnum Textile circular
calculator, measures 12cm diameter, in very good condition and in leather
case which is also in fine order. Also comes with its original 42 page instruction
book which although a little dog-eared is complete and perfectly
useable. dating to around 1950, its becoming increasingly more difficult
to find these items in such good and complete condition.
| Price |
Status |
Code |
Ship UK |
Overseas |
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SOLD |
SC276 |
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Original Odhner pinwheel
mechanical calculator. Grey metal case, made in Sweden, serial no 1049 -
52417. In good condition with only minor paint loss. Dating to around 1960,
these are rapidly becoming must have desktop accessories, as well as collectables.
In full working order this is a heavy item weighing over 6kgs! Overseas
buyers please email for cost of shipping.
| Price |
Status |
Code |
Ship UK |
Overseas |
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SOLD |
SC264 |
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This is a vintage mechanical calculator made
by Atvidaberg - Facit in Sweden. The model is the NTK which was produced
between 1954 - 1957, and the serial number 473672 allows us to date this
particular one to 1955. It has a 10 digit keyboard with 8 digit counter
and 13 digit accumulator. In very good condition and fully working, this
is a heavy item at around 6kgs, and measures overall width 11.5" x
7.5"depth x 6" high. Overseas buyers please email me for shipping
costs.
| Price |
Status |
Code |
Ship UK |
Overseas |
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SOLD |
SC294 |
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Click photo for larger image |
This is a quite exceptional example of
a Fowler's Jubilee Magnum Extra Long Scale calculator.
Designed in 1948 by Harold Fowler to mark the 50th
anniversary of the founding of the firm by his father William
Henry Fowler in 1898. This particular calculator comes in a special presentation
case which suggests it was one of the first models made in 1948,
probably for promotional distribution.
This was the largest circular calculator made by Fowler's measuring 12cm
in diameter, and it has a 79" long scale extending over ten circles.
In full working order, with a black hammer finish steel backplate and
a bright nickel outer body, the condition of the calculator and its velvet
lined fitted case is near mint. Its doubtful that there are many of these
presentation sets left, let alone in such fine condition
(the photos don't do it justice!).
| Price |
Status |
Code |
Ship UK |
Overseas |
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SOLD |
SC1010 |
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Brunsviga rotary pinwheel calculator, made
by Olympia Werke AG Wilhelmshaven. In full working order with only minor
paint loss. Has 10 digit setting register, 13 digit accumulator register,
and 8 digit revolution register. 12" x 5" overall dimensions and
weighs around 8 kilos
Manufactured between 1950 -1970.
Overseas buyers please email for Shipping costs.
| Price |
Status |
Code |
Ship UK |
Overseas |
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SOLD |
SC260 |
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Fowlers Universal circular calculator,
with original instruction book. Measures 9cm diameter, in very
good condition (nice clean dial) with its leather case, also in good condition
and engraved 'Fowlers Universal Calculator, Sale'. Dates to around the 1950's.
| Price |
Status |
Code |
Ship UK |
Overseas |
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SOLD |
SC546 |
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This is a MULTO Pinwheel mechanical calculator
manufactured in Sweden around the 1950s, and retailed by ADDO Ltd. London.
In excellent working order, a real collectors piece. It weighs about 8
kilos. The length is about 12 inches the height about 6 inches . Overseas
buyers please email for Shipping costs.
| Price |
Status |
Code |
Ship UK |
Overseas |
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SOLD |
SC254 |
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In excellent condition,
a fully working Fowler's Twelve Ten calculator in a superb
presentation box with 'The Fowler Calculator' printed
in gold lettering on the lid. Known as the 12-10 because it includes scales
to convert twelfths to tens, yards to metres, lbs to Kgs, inches to centimetres
etc. Introduced in 1936, this particular calculator was primarily designed
for Architects, Surveyors, Builders and Craftsmen, and is one of the more
hard to find models, particularly in such good condition with its own
special Fowlers presentation case (size 4" x 5").
Comes with a photocopied page from a Fowlers advertising brochure.
Please note the slight red hue on the black case outer
is only from the flash photography, and is NOT a blemish on the case which
is in excellent cosmetic condition.
| Price |
Status |
Code |
Ship UK |
Overseas |
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SOLD |
SC662 |
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Original Odhner
pinwheel mechanical calculator. Grey metal case, model no 229 serial no
4991.In super condition, still has its original plastic dust cover. Dates
to around 1960, a real collectors piece in full working order. Heavy item
weighs over 6kgs! Overseas buyers please email for cost of shipping.
| Price |
Status |
Code |
Ship UK |
Overseas |
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SOLD |
SC108 |
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