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Click an image above
or a link below for details |
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| In
The Hand |
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| Addiator |
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A hand-held or desktop
calculator for adding and sutracting in old
sterling. |
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| Addmaster |
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A hand-held calculator
for adding and sutracting in old sterling. |
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| Arithma |
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A hand-held calculator
for adding and sutracting in old sterling. |
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| Decimeter |
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A converter between old
and new sterling currencies. |
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| Exactus |
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A hand-held calculator
for adding and sutracting in old sterling. |
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| Reckoner |
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A ready reckoner for
old sterling. |
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| On
The Desk |
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| Addipresto |
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A desktop calculator
for adding in old sterling. |
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| Bri
Cal |
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An early desktop calculator
for adding in old sterling. |
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| Brunsviga |
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A desktop calculator
for adding and subtracting in old sterling. |
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| Contex
A |
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A desktop calculator
for adding in old sterling. |
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| Contex
B |
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A more modern looking
desktop calculator for adding in old sterling. |
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| Olivetti
15 £sd |
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An early desktop add-lister
for adding and subtracting in old sterling. |
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| Olivetti
20 £sd |
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A desktop add-lister
for adding and subtracting in old sterling,
convertible to decimal. |
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| Olivetti
Decimal |
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A desktop add-lister
for adding and subtracting in new sterling. |
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| Plus |
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A computator style adding
machine for old sterling. |
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| Victor |
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A desktop add-lister
for adding and subtracting in old sterling. |
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| Adding machines were around
for a long time in the days before electronic calculators.
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| Adding up in the old UK currency
of pounds, shillings and pence required special
adaptations. |
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| Of course you could use a ready
reckoner and look the answer up in the tables or
there was always pencil and paper . . . . |
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